第五版测试题库
会计学原理(第五版)+葛军+参考答案41344
会计学原理(第五版)+葛军+参考答案41344第一章同步测试答案单项选择题：1.C2.B3.C4.D5.A6.B7.A8.C9.A10.C11.A12.A13.B14.C15.D多项选择题：1.A。
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E 第二章同步测试答案单项选择题：1.C2.D3.C4.A5.C6.B7.C8.C9.B10.A11.A12.D13.B14.D15.C多项选择题：1.D。
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B三、业务练题练题一：1) 期初会计等式：资产（176+8800+2000+4500+624+4800=）=负债（5000+900=5900）+所有者权益（）2) 经济业务对会计等式的影响：1) -5000+50002) +8500=+85003) -900=-9004) +1000=+10005) -140+140=06) +1500-1500=0练题二：1) 在年度中既未增加投资，也未收回投资时，本年度利润=（-）-（-）=2) 在年度内增加投资20,000元时，本年度利润=-=3) 在年度内收回投资15,000元时，本年度利润=+=4) 在年度内收回投资32,000元，但又增加投资45,000元时，本年度利润=+-=练题三：所有者权益：项目金额资产 5000 费用 0 负债 0 收入 0 利润 01.银行存款 50002.投入资本贷：应付账款5）借：库存现金500贷：管理费用5002、修改后的文章如下：这一经济业务导致该企业的短期借款增加了8000元，而应付账款减少了同样的金额，属于“一项负债减少，另一项负债增加，增减金额相等”类型的业务。
(完整版)金属材料与热处理题库及答案
金属材料与热处理(第五版)练习题及答案第一章金属的结构与结晶一、判断题1、非晶体具有各同性的特点。
(V )2、金属结晶时，过冷度越大，结晶后晶粒越粗。
(V )3、一般情况下，金属的晶粒越细，其力学性能越差。
(X )4、多晶体中，各晶粒的位向是完全相同的。
(X )5、单晶体具有各向异性的特点。
( V )6 、金属的同素异构转变是在恒温下进行的。
( V )7、组成元素相同而结构不同的各金属晶体，就是同素异构体。
( V )8、同素异构转变也遵循晶核形成与晶核长大的规律。
( V )9、钢水浇铸前加入钛、硼、铝等会增加金属结晶核，从而可细化晶粒。
( X )10、非晶体具有各异性的特点。
( X )11 、晶体的原子是呈有序、有规则排列的物质。
( V )12 、非晶体的原子是呈无序、无规则堆积的物质。
( V )13 、金属材料与热处理是一门研究金属材料的成分、组织、热处理与金属材料性能之间的关系和变化规律的学科。
(V)14 、金属是指单一元素构成的具有特殊的光泽延展性导电性导热性的勺物质。
(V)15 、金银铜铁锌铝等都属于金属而不是合金。
(V)16 、金属材料是金属及其合金的总称。
(V)17 、材料的成分和热处理决定组织，组织决定其性能，性能又决定其用途。
(V)18 、金是属于面心立方晶格。
(V)19 、银是属于面心立方晶格。
(V)20 、铜是属于面心立方晶格。
(V)21 、单晶体是只有一个晶粒组成的晶体。
(V)22 、晶粒间交接的地方称为晶界。
(V)23 、晶界越多，金属材料的性能越好。
(V)24 、结晶是指金属从高温液体状态冷却凝固为固体状态的过程(V)25 、纯金属的结晶过程是在恒温下进行的。
(V)26 、金属的结晶过程由晶核的产生和长大两个基本过程组成D(V)27 、只有一个晶粒组成的晶体成为单晶体。
(V)28 、晶体缺陷有点、线、面缺陷。
(V)29 、面缺陷分为晶界和亚晶界两种。
(V)30 、纯铁是有许多不规则的晶粒组成。
电子技术基础模拟部分第五版复习题
复习题一、填空：1.为使BJT发射区发射电子，集电区收集电子，具备的条件是（发射极正偏，集电极反偏）。
2.N型半导体是在纯硅或锗中加入（+5）元素物质后形成的杂质半导体。
3.差分放大电路对（差模）信号有放大作用，对（共模）信号起到抑制作用。
4.在电容滤波和电感滤波中，（电感）滤波适用于大电流负载，（电容）滤波的直流输出电压高。
5．集成运放主要包括输入级、(中间放大极)、(输出极)和?(偏置)电路。
其中输入级一般采用(差模)电路。
6.为稳定放大器的静态工作点，应在放大电路中引入（直流负）反馈，为稳定放大器的输出电压应引入（电压负）反馈。
7．与甲类功放电路相比，乙类互补对称功率放大电路的优点是（管耗小，效率高），其最高效率可达到（78.5%），但容易产生（交越）失真。
8．集成运算放大器是一种采用（直接）耦合方式的多级放大电路，它的输入级常采用差分电路形式，其作用主要是为了克服（共模干扰）。
9．若放大器输入信号电压为1mV,输出电压为1V，加入负反馈后，为达到同样输出需要的输入信号为10mV，该电路的反馈深度为（10）。
10．产生1Hz～1MHz范围内的低频信号一般采用（RC）振荡器，而产生1MHz以上的高频信号一般采用（LC）振荡器。
11．半导体二极管具有（体积小，重量轻，使用寿命长，输入功率小，功率转换效率高等）作用，稳压二极管用作稳压元件时工作在（反向击穿）状态。
12．晶体三极管是一种（电流）控制型器件，当工作在饱和区时应使其发射结（反偏）集电结（正偏），而场效应管是一种(电压) 控制型器件。
13．集成电路运算放大器是一种高电压增益、高输入电阻、（低）输出电阻的（直接）耦合方式的多级放大电路。
14．差分放大电路有四种输入－输出方式，其差模电压增益大小与输（出）有关而与输（入）方式无关。
15．在放大电路中引入（直流负）反馈可以稳定放大电路的静态工作点，。
16．三种组态的放大电路中（共发射极组态、共基极组态、共集电极组态）输入电阻最小的是（共集电极放大）电路。
新生儿复苏理论测试试题
新生儿复苏教程（第五版）评估试卷第1课—概述和复苏原理1．约有百分之几的新生儿出生时需要一些帮助才能开始呼吸？ca. 1 %b. 5 %c.10 %d.30 %2．有百分之几的新生儿进行初步评估来决定是否需要复苏？da. 1 %b.10 %c.50 %d.100 %3．新生儿复苏过程中，以下哪一项是最重要和最有效的措施？ca.给氧。
b.施行胸外按压。
c.正压人工呼吸。
d.给肾上腺素。
4．以下哪一项是原发性呼吸暂停而不是继发性呼吸暂停的特征？da.血压下降b.心率减慢仅对肾上腺素有反应c.喘息性呼吸仅用正压人工呼吸有效d.对触觉刺激有反应5．分娩时为复苏小组配备人员的最好的指南是什么？aa.当预见有复苏可能时，另一个复苏人员将在分娩前进入产房。
b.复苏人员可能有其他的职责，如去帮助产科医师。
c.复苏人员可在离医院较远的家里电话待命，只要他们能在分娩后15min内到达。
d.预见是双胎或三胎分娩时，单独一个复苏人员应能多面的照料所有的新生儿而对每个新生儿不需要有一个独立小组。
6．ABC复苏方案指什么？a.阿氏评分，碳酸氢钠和胸外按压b.评估，责任和危急c.阿氏评分，血容量和协作护理d.气道，呼吸和循环7．复苏过程中评估和决策主要基于哪三个体征？a.呼吸，血压，肤色b.血压，肤色，心率c.呼吸，心率，肤色d.呼吸，血压，心率8．继发性呼吸暂停时，通常采用以下哪种方法使心率增快？a.开始有效的正压人工呼吸b.胸外按压30次/minc.保暖，擦干和刺激d.接近脸部使用常压氧9．刚出生，当你评估是否需要复苏时，你将问有关新生儿哪4个问题？a.单胎分娩？羊水清？有呼吸和哭声？脐带有三条血管？b.足月妊娠？羊水清？有呼吸和哭声？肌张力好？c.低出生体重？羊水清？有呼吸和哭声？肤色红润？d.温暖？羊水清？有呼吸和哭声？母乳喂养？10．在产房，新生儿经过气管插管及正压人工呼吸10min内反应良好，应给何种护理？a. 常规护理b. 观察护理c. 复苏后护理d. 袋鼠式护理11．出生后正常过渡时，如何使新生儿自肺内获取氧输送到血液中去？a. 肺血管收缩迫使血液更快和更大量的输送到血液中去。
曼昆《经济学原理》（微观）第五版测试题库（14）（1）
曼昆《经济学原理》（微观）第五版测试题库（14）（1）Chapter 14Firms in Competitive MarketsTRUE/FALSE1. For a firm operating in a perfectly competitive industry, total revenue, marginal revenue, and average revenue are all equal.ANS: F DIF: 2 REF: 14-1 NAT: AnalyticLOC: Perfect competition TOP: Average revenue | Marginal rev-enueMSC: Interpretive2. For a firm operating in a perfectly competitive industry, marginal reve-nue and average revenue are equal.ANS: T DIF: 2 REF: 14-1 NAT: AnalyticLOC: Perfect competition TOP: Average revenue | Marginal rev-enueMSC: Interpretive3. If a firm notices that its average revenue equals the current market price, that firm must be participating in a competitive market.ANS: F DIF: 2 REF: 14-1 NAT: AnalyticLOC: Perfect competition TOP: Average revenueMSC: Interpretive4. A profit-maximizing firm in a competitive market will increase produc-tion when average revenue exceeds marginal cost. ANS: T DIF: 2 REF: 14-1 NAT: AnalyticLOC: Perfect competition TOP: Average revenueMSC: Interpretive5. Because there are many buyers and sellers in a perfectly competitive market, no one seller can influence the market price. ANS: T DIF: 1 REF: 14-1 NAT: AnalyticLOC: Perfect competition TOP: Competitive marketsMSC: Definitional6. Firms operating in perfectly competitive markets try to maximize prof-its.ANS: T DIF: 2 REF: 14-1 NAT: AnalyticLOC: Perfect competition TOP: Profit maximization929MSC: Applicative7. In competitive markets, firms that raise their prices are typically re-warded with larger profits.ANS: F DIF: 2 REF: 14-1 NAT: AnalyticLOC: Perfect competition TOP: Competitive marketsMSC: Interpretive8. When an individual firm in a competitive market increases its produc-tion, it is likely that the market price will fall. ANS: F DIF: 2 REF: 14-1 NAT: AnalyticLOC: Perfect competition TOP: Competitive marketsMSC: Interpretive9. In a competitive market, firms are unable to differentiate their product from that of other producers.ANS: T DIF: 1 REF: 14-1 NAT: AnalyticLOC: Perfect competition TOP: Competitive marketsMSC: Interpretive10. Firms in a competitive market are said to be price takers because there are many sellers in the market and the goods offered by the firms are very similar if not identical.ANS: T DIF: 2 REF: 14-1 NAT: AnalyticLOC: Perfect competition TOP: Competitive marketsMSC: Interpretive11. A firm's incentive to compare marginal revenue and marginal cost is an application of the principle that rational people think at the margin. ANS: T DIF: 1 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximizationMSC: Interpretive12. By comparing the marginal revenue and marginal cost from each unit produced, a firm in a competitive market can determine the profit-maximizing level of production.ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximizationMSC: Interpretiveword⽂档可⾃由复制编辑Chapter 14/Firms in Competitive Markets 931 13. Firms operating in perfectly competitive markets produce an output level where marginal revenue equals marginal cost.ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Marginal revenueMSC: Applicative14. A firm is currently producing 100 units of output per day. The man-ager reports to the owner that producing the 100th unit costs the firm $5. The firm can sell the 100th unit for $4.75. The firm should continue to pro-duce 100 units in order to maximize its profits (or minimize its losses). ANS: F DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximizationMSC: Analytical15. A firm is currently producing 100 units of output per day. The man-ager reports to the owner that producing the 100th unit costs the firm $5. The firm can sell the 100th unit for $5. The firm should continue to produce 100 units in order to maximize its profits (or minimize its losses).ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximizationMSC: Analytical16. A firm is currently producing 100 units of output per day. The man-ager reports to the owner that producing the 100th unit costs the firm $5. The firm can sell the unit for $6. The firm should produce more than 100 units in order to maximize its profits (or minimize its losses).ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximizationMSC: Analytical17. A dairy farmer must be able to calculate sunk costs in order to deter-mine how much revenue the farm receives for the typical gallon of milk. ANS: F DIF: 1 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Sunk costs MSC: I nterpretive18. Because nothing can be done about sunk costs, they are irrelevant to decisions about business strategy.ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Sunk costs MSC: I nterpretive19. A miniature golf course is a good example of where fixed costs be-come relevant to the decision of when to open and when to close for the season.ANS: F DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Sunk costs MSC: I nterpretive20. A popular resort restaurant will maximize profits if it chooses to stay open during the less-crowded “off season” when its total revenues exceed its variable costs.ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Sunk costs MSC: I nterpretive21. All firms maximize profits by producing an output level where marginal revenue equals marginal cost; for firms operating in perfectly competitive in-dustries, maximizing profits also means producing an output level where price equals marginal cost.ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximizationMSC: Interpretive22. A firm operating in a perfectly competitive industry will continue to op-erate in the short run but earn losses if the market price is less than that firm’s average total cost but greater than the firm’s average variable cost. ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Supply curveMSC: Interpretive23. A firm operating in a perfectly competitive industry will continue to op-erate in the short run but earn losses if the market price is less than that firm’s average variable co st.ANS: F DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Supply curveMSC: Interpretive24. A firm operating in a perfectly competitive industry will shut down in the short run but earn losses if the market price is less than that firm’s aver-age variable cost.ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Supply curveMSC: Interpretiveword⽂档可⾃由复制编辑Chapter 14/Firms in Competitive Markets 933 25. In the short run, a firm should exit the industry if its marginal cost ex-ceeds its marginal revenue.ANS: F DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Supply curveMSC: Interpretive26. In making a short-run profit-maximizing production decision, the firm must consider both fixed and variable cost. ANS: F DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximizationMSC: Interpretive27. A firm will shut down in the short run if revenue is not sufficient to cov-er its variable costs of production.ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Shut down MSC: I nterpretive28. Suppose a firm is considering producing zero units of output. We call this shutting down in the short run and exiting an industry in the long run. ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Shut down MSC: I nterpretive29. Suppose a firm is considering producing zero units of output. We call this exiting an industry in the short run and shutting down in the long run. ANS: F DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Shut down MSC: I nterpretive30. A firm will shut down in the short run if revenue is not sufficient to cov-er all of its fixed costs of production.ANS: F DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Shut down MSC: I nterpretive31. The supply curve of a firm in a competitive market is the average va-riable cost curve above the minimum of marginal cost.ANS: F DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Supply curveMSC: Interpretive32. When a profit-maximizing firm in a competitive market experiences rising prices, it will respond with an increase in production.ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximizationMSC: Interpretive33. The marginal firm in a competitive market will earn zero economic profit in the long run.ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Economic profitMSC: Interpretive34. A profit-maximizing firm in a competitive market will earn zero ac-counting profits in the long run.ANS: F DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Accounting profitMSC: Interpretive35. In the long run, when price is less than average total cost for all possi-ble levels of production, a firm in a competitive market will choose to exit (or not enter) the market.ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximizationMSC: Interpretive36. In the long run, when price is greater than average total cost, some firms in a competitive market will choose to enter the market.ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximizationMSC: Interpretive37. In the long run, a firm should exit the industry if its total costs exceed its total revenues.ANS: T DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximizationMSC: Interpretive38. When a resource used in the production of a good sold in a competi-tive market is available in only limited quantities, the long-run supply curve is likely to be upward sloping.ANS: T DIF: 2 REF: 14-3 NAT: AnalyticLOC: Perfect competition TOP: Supply curveMSC: Interpretiveword⽂档可⾃由复制编辑Chapter 14/Firms in Competitive Markets 935 39. A firm operating in a perfectly competitive industry will continue to op-erate if it earns zero economic profits because it is likely to be earning posi-tive accounting profits.ANS: T DIF: 2 REF: 14-3 NAT: AnalyticLOC: Perfect competition TOP: Competitive marketsMSC: Interpretive40. A firm operating in a perfectly competitive industry will shut down in the short run if its economic profits fall to zero because it is likely to be earn-ing negative accounting profits.ANS: F DIF: 2 REF: 14-3 NAT: AnalyticLOC: Perfect competition TOP: Competitive marketsMSC: Interpretive41. A firm operating in a perfectly competitive market may earn positive, negative, or zero economic profit in the long run. ANS: F DIF: 2 REF: 14-3 NAT: AnalyticLOC: Perfect competition TOP: Long-run supply curveMSC: Interpretive42. A firm operating in a perfectly competitive market may earn positive, negative, or zero economic profit in the short run. ANS: T DIF: 2 REF: 14-3 NAT: AnalyticLOC: Perfect competition TOP: Long-run supply curveMSC: Interpretive43. A firm operating in a perfectly competitive market earns zero economic profit in the long run but remains in business because the firm’s revenues cover the business owners’ opportunity costs.ANS: T DIF: 2 REF: 14-3 NAT: AnalyticLOC: Perfect competition TOP: Zero-profit conditionMSC: Interpretive44. A competitive market will typically experience entry and exit until ac-counting profits are zero.ANS: F DIF: 2 REF: 14-3 NAT: AnalyticLOC: Perfect competition TOP: Zero-profit conditionMSC: Interpretive45. The long-run equilibrium in a competitive market characterized by firms with identical costs is generally characterized by firms operating at effi-cient scale.ANS: T DIF: 2 REF: 14-3 NAT: AnalyticLOC: Perfect competition TOP: Zero-profit conditionMSC: Interpretive46. In the long run, a competitive market with 1,000 identical firms will ex-perience an equilibrium price equal to the minimum of each firm's average total cost.ANS: T DIF: 2 REF: 14-3 NAT: AnalyticLOC: Perfect competition TOP: Zero-profit conditionMSC: Interpretive47. In a long-run equilibrium where firms have identical costs, it is possible that some firms in a competitive market are making a positive economic prof-it.ANS: F DIF: 2 REF: 14-3 NAT: AnalyticLOC: Perfect competition TOP: Zero-profit conditionMSC: Interpretive48. When economic profits are zero in equilibrium, the firm's revenue must be sufficient to cover all opportunity costs. ANS: T DIF: 2 REF: 14-3 NAT: AnalyticLOC: Perfect competition TOP: Zero-profit conditionMSC: Interpretive49. The short-run supply curve in a competitive market must be more elastic than the long-run supply curve.ANS: F DIF: 2 REF: 14-3 NAT: AnalyticLOC: Perfect competition TOP: Supply curveMSC: Interpretive50. The long-run supply curve in a competitive market is more elastic than the short-run supply curve.ANS: T DIF: 2 REF: 14-3 NAT: AnalyticLOC: Perfect competition TOP: Supply curveMSC: InterpretiveSHORT ANSWERword⽂档可⾃由复制编辑Chapter 14/Firms in Competitive Markets 937 1. Describe the difference between average revenue and marginal reve-nue. Why are both of these revenue measures important to a prof-it-maximizing firm?ANS:Average revenue is total revenue divided by the quantity of output. Marginal revenue is the change in total revenue from the sale of each additional unit of output. Marginal revenue is used to determine the profit-maximizing level of production, and average revenue is used to help determine the level of profits. Note that for all firms, price equals average revenue because AR=(PxQ)/Q=P. But only for a firm operating in a perfectly competitive industry does price al-so equal marginal revenue.DIF: 2 REF: 14-1 NAT: Analytic LOC: Perfect competitionTOP: Price MSC: D efinitional2. List and describe the characteristics of a perfectly competitive market. ANS:There are many buyers and sellers in the market. The goods offered by the various sellers are largely the same. Firms can freely enter or exit the market. DIF: 2 REF: 14-1 NAT: Analytic LOC: Perfect competitionTOP: Competitive markets MSC: D efinitional3. Why would a firm in a perfectly competitive market always choose to set its price equal to the current market price? If a firm set its price below the current market price, what effect would this have on the market?ANS:The firm could not sell any more of its product at a lower price than it could sell at the market price. As a result, it would needlessly forgo revenue if it set a price below the market price. If the firm set a higher price, it would not sell anything at all because a competitive market has many sellers who would supply the product at the market price.DIF: 2 REF: 14-1 NAT: Analytic LOC: Perfect competitionTOP: Profit maximization MSC: A nalytical4. Use a graph to demonstrate the circumstances that would prevail in a competitive market where firms are earning economic profits. Can this sce-nario be maintained in the long run? Explain your answer.ANS:In a competitive market where firms are earning economic profits, new firms will have an incentive to enter the market. This entry will expand the number of firms, increase the quantity of the good supplied, and drive down pricesword ⽂档可⾃由复制编辑 and profits. Entry will cease once firms are producing the output level where price equals the minimum of the average total cost curve, meaning that eachfirm earns zero economic profits in the long run.DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximization MSC: A nalytical5. Explain how a firm in a competitive market identifies the prof-it-maximizing level of production. When should the firm raise production, and when should the firm lower production? ANS:The firm selects the level of output at which marginal revenue is equal tomarginal cost. If MR > MC, profit will increase if the firm increases Q. If MR < MC, profit will increase if the firm decreases Q. DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximization MSC: A nalytical6. News reports from the western United States occasionally report inci-dents of cattle ranchers slaughtering a large number of newborn calves and burying them in mass graves rather than transporting them to markets. As-suming that this is rational behavior by profit-maximizing "firms," explain what economic factors may influence such behavior.ANS:If the selling price is not sufficient to cover the variable cost of sending the calves to market, this (potentially emotionally upsetting) behavior makes economic sense.DIF: 2 REF: 14-2 NAT: AnalyticLOC: Perfect competition TOP: Profit maximization MSC: A nalytical。
人大第五版管理会计A试卷
一、单项选择题（每题1分，共20分）1.管理会计提供的会计信息侧重于对（）服务。
A.股东B.外部集团C.债权人D.企业内部的经营管理2.将全部成本分为固定成本、变动成本和混合成本所采用的分类标志是（）。
A.成本的目标B.成本的性态C.成本的经济用途D.成本的可辨认性3.在其他因素不变的条件下，其变动不能影响保本点的因素是（）。
A.单位变动成本B.固定成本C.单价D.销售量4.在历史资料分析法中，高低点法所用的“高低”是指（）。
A.最高或最低的成本B.最高或最低的业务量C.最高或最低的成本或业务量D.最高或最低的成本和业务量5.按变动成本法计算，产品成本中不包括（）。
A.直接材料B.直接人工C.变动性制造费用D.固定性制造费用6. 下属因素中导致保本销售量上升的是( )。
A.销售量上升B.产品单价下降C.固定成本下降D.产品单位变动成本下降7.在经济决策过程中，因选取某一方案而放弃另一方案所付出的代价或丧失的潜在利益，就是所谓的（）。
A.增量成本B.机会成本C.专属成本D.沉没成本8.有关产品是否进行深加工决策中，深加工前的半成品成本属于（）。
A.估算成本B.重置成本C.机会成本D.沉没成本9.已知某产品的单位变动成本为10元，固定成本为15 000元，销售量为5 000件，目标利润为5 000元，则实现目标利润的单价为（）。
A.14元B.6元C.11元D.13元10.当企业的剩余生产能力无法转移时，应不继续生产某亏损产品的必要条件是（）。
A.该产品的单价等于单位变动成本B.该产品的单价小于单位变动成本C.该产品的单位贡献边际大于零D.该产品的变动成本率大于100 %11.某投资项目，若使用10%做贴现率，其净现值为250，用12%做贴现率，其净现值为-120，该项目的内含报酬率为（）。
A.8.65%B.10.65%C.11.35%D.12.35%12.当内部收益率法、净现值率法的决策结论与净现值法的结论相矛盾时，一般应以（）的决策结论为准。
数字电子技术基础(阎石)第五版课堂测试题及自测题汇总
一、填空题
1. 组成数字逻辑电路的基本单元电路
是 逻辑门电路
，它能够实现 逻辑变量
间的某种逻辑运算。
2. 集电极开路门电路，简称
为 OC门
。
3.常典型1T.4TVL与非门的。阈值电压Vth通
4. TTL与非门的电压传输特性是
指 输出电压随输入电压变化的关系
。
5. 异或门是实现 异或逻辑功能 的门电路。
2. 八位二进制数可以表示256种不同状态。
（）
∨
3. 二进制编码只能有于表示数字。 （ ×）
4. 逻辑电路的输出变量与其输入变量之间 为一定的逻辑关系。（∨ ）
5. 逻辑变量的取值可以是任意种。 （ ×）
4
6. 十进制数只能用8421BCD码表示。 （× ）
7. 任何一个十进制整数都可以用一个任意 进制的数来表示。（ ∨ ）
4. 写出如下图所示电路对应的真值表。
13
14
15
5. 设计一个含三台设备工作的 故障显示器。 要求如下：三台设备都正常工作时，绿灯亮； 仅一台设备发生故障时，黄灯亮；两台或两 台以上设备同时发生故障时，红灯亮。
16
17
1 0
18
1 0
19
20
21
第三章 门电路 自 测 题（答案）
7
3. 填空题：
(000101010001) 8421BCD
＝( 151 ) 10 ＝( 10010111 ) 2 ＝( 227
) 8 ＝( 97 ) 16
8
第二章 逻辑代数基础 课堂测试题
答案
9
1.用代数法求下式的最简与或式。
F AD AD AB AC BD ACFG CDEGH
管理学基础(第五版)期末考试题库
国家级精品资源共享课管理学基础《管理学基础》试题库(2012年修订）说明本试题库共设五种题型：速测题（填空题）、单选题、多选题、简答题、情景题.1.速测题以填空的形式，在限定时间内完成，主要考查学生掌握基本知识的程度。
既可以选择部分试题在期末测试中使用,又可以作为速测题，分为2-3次测试，以取代期末书面考试.2. 情景题是紧密联系管理实际进行分析、决策、计算或操作的一种题型，即设定某种管理情景，然后由学生运用管理原理或工具有针对性地分析解决实际管理问题。
情景题要求联系实际说明管理有关知识,不是单纯回答知识要点的简答题。
评分标准是：知识要点回答与联系实际分析或说明各占一半的分数。
3。
速测题、单选题、多选题、简答题、情景题在高等教育出版社网站上提供学生自测和教师自动组卷系统.一、速测题（填空题)第1章管理概述1。
1。
1管理是共同劳动的产物。
1.1.2管理既是科学又是艺术，是科学与艺术的结合。
科学,是强调其客观规律性；艺术,则是强调其灵活性与创造性。
1。
1。
3管理系统一般由以下要素构成：⑴管理目标；⑵管理主体；⑶管理对象；⑷管理媒介；⑸管理环境。
1.1。
4高层管理者以决策为主要职能。
1。
1.5中层管理者是高层管理者决策的执行者。
1。
1。
6基层管理者负责现场指挥与现场监督。
1。
1.7所谓管理机制，是指管理系统的结构及其运行机理。
1。
1.8管理机制主要包括运行机制、动力机制、约束机制等三个子机制。
1。
1.9按存在于社会组织的内外范围划分，管理环境可分为内部环境和外部环境。
1.1。
10组织的外部环境还可以进一步划分为一般环境和任务环境。
1。
1。
11中基层管理者的十大管理实务：⑴确定目标；⑵制定计划；⑶建立机构；⑷配备人员；⑸指挥；⑹激励；⑺沟通；⑻协调；⑼监控；⑽评估。
1.1.12管理核心技能的“1+3"模式是指以管理者的概念技能为统领（“1”），包括人际技能、行政技能、技术技能等三大领域技能（“3”)的管理者核心技能体系.1.1.13泰罗的科学管理理论以现场管理为重点，以提高劳动生产率为中心。
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Chapter 28UnemploymentTRUE/FALSE1. Most people rely on income other than their labor earnings to maintain their standard of living.ANS: F DIF: 1 REF: 28-0NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Income | Standard of living MSC: Definitional2. The amount of unemployment that a country typically experiences is a determinant of that country's standardof living.ANS: T DIF: 1 REF: 28-0NAT: Analytic LOC: Unemployment and inflationTOP: Unemployment | Standard of living MSC: Definitional3. Some degree of unemployment is inevitable in a complex economy.ANS: T DIF: 1 REF: 28-0NAT: Analytic LOC: Unemployment and inflation TOP: UnemploymentMSC: Definitional4. The amount of unemployment varies little over time and across countries.ANS: F DIF: 1 REF: 28-0NAT: Analytic LOC: Unemployment and inflation TOP: UnemploymentMSC: Definitional5. When a country keeps its workers as fully employed as possible, it achieves a higher level of GDP than itwould if it left many of its workers standing idle.ANS: T DIF: 1 REF: 28-0NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Employment | GDP MSC: Definitional6. An economy’s natural rate of unemployment refers to the amount of unemployment that the eco nomynormally experiences.ANS: T DIF: 1 REF: 28-0NAT: Analytic LOC: Unemployment and inflationTOP: Natural rate of unemployment MSC: Definitional7. Cyclical unemployment refers to the year-to-year fluctuations in unemployment around its natural rate. ANS: T DIF: 1 REF: 28-0NAT: Analytic LOC: Unemployment and inflation TOP: Cyclical unemploymentMSC: Definitional8. The natural rate of unemployment is closely associated with the short-run ups and downs of economic activity. ANS: F DIF: 1 REF: 28-0NAT: Analytic LOC: Unemployment and inflationTOP: Natural rate of unemployment MSC: Definitional9. The natural rate of unemployment is the desirable rate of unemployment for an economy.ANS: F DIF: 1 REF: 28-0NAT: Analytic LOC: Unemployment and inflationTOP: Natural rate of unemployment MSC: Definitional10. The natural rate of unemployment is constant over time.ANS: F DIF: 1 REF: 28-0NAT: Analytic LOC: Unemployment and inflationTOP: Natural rate of unemployment MSC: Definitional1872Chapter 28/Unemployment 1873 11. The natural rate of unemployment is impervious to economic policy.ANS: F DIF: 1 REF: 28-0NAT: Analytic LOC: Unemployment and inflationTOP: Natural rate of unemployment MSC: Definitional12. Government policy can do nothing about the natural rate of unemployment.ANS: F DIF: 2 REF: 28-0NAT: Analytic LOC: Unemployment and inflationTOP: Natural rate of unemployment MSC: Interpretive13. The natural rate of unemployment is a type of unemployment that does not go away on its own even in thelong run.ANS: T DIF: 1 REF: 28-0NAT: Analytic LOC: Unemployment and inflationTOP: Natural rate of unemployment MSC: Definitional14. Long-run unemployment arises from a single problem that has a single solution.ANS: F DIF: 1 REF: 28-0NAT: Analytic LOC: Unemployment and inflationTOP: Natural rate of unemployment MSC: Definitional15. There is no easy way for policymakers to reduce the economy’s natural rate of unemployment.ANS: T DIF: 1 REF: 28-0NAT: Analytic LOC: Unemployment and inflationTOP: Natural rate of unemployment MSC: Definitional16. Measuring unemployment is the job of the Bureau of Labor Statistics.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Bureau of Labor Statistics MSC: Definitional17. Measuring unemployment is the job of the Bureau of Labor Statistics, which is part of the U.S. Department ofCommerce.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Bureau of Labor Statistics MSC: Definitional18. Every week, the Bureau of Labor Statistics produces data on unemployment.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Bureau of Labor Statistics MSC: Definitional19. The Bureau of Labor Statistics produces data on unemployment, types of employment, length of the averageworkweek, and the duration of unemployment.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Bureau of Labor Statistics MSC: Definitional20. The Bureau of Labor Statistics produces data on unemployment and other aspects of the labor market from aregular survey of about 600 households, called the Current Population Survey.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Bureau of Labor Statistics MSC: Definitional21. The Bureau of Labor Statistics produces data on unemployment and other aspects of the labor market from aregular survey of about 60,000 households, called the Current Population Survey.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Bureau of Labor Statistics MSC: Definitional1874 Chapter 28/Unemployment22. The Bureau of Labor Statistics produces data on unemployment and other aspects of the labor market from aregular survey of about 60,000 households, called the Census.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Bureau of Labor Statistics MSC: Definitional23. The Bureau of Labor Statistics places each adult (aged 16 and older) of each surveyed household into one ofthree categories: employed, unemployed, and not in the labor force.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Bureau of Labor Statistics MSC: Definitional24. The Bureau of Labor Statistics places each adult (aged 16 and older) of each surveyed household into one offour categories: employed, underemployed, unemployed, and not in the labor force.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Bureau of Labor Statistics MSC: Definitional25. The Bureau of Labor Statistics’ “employed” category includes those who worked as paid employees, workedin th eir own business, or worked as unpaid workers in a family member’s business.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Bureau of Labor Statistics | Employment MSC: Definitional26. Only paid worker s are included in the Bureau of Labor Statistics’ “employed” category.ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Bureau of Labor Statistics | Employment MSC: Interpretive27. Both full-time and part-time workers are included in the Bureau of Labor Statistics’ “employed” category. ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Bureau of Labor Statistics | Employment MSC: Definitional28. Some adul ts who were not working are included in the Bureau of Labor Statistics’ “employed” category. ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Bureau of Labor Statistics | Employment MSC: Interpretive29. Adults who were not working but who had jobs from which they were temporarily absent are included in theBureau of Labor Statistics’ “employed” category.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Bureau of Labor Statistics | Employment MSC: Definitional30. Adults who were waiting to be recalled to a job from which they had been laid off are included in the Bureauof Labor Statistics’ “employed” category.ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Bureau of Labor Statistics | Employment MSC: Interpretive31. The Bureau of Labor Statistics’ “unemployed” category includes those who were not employed, wereavailable for work, and had tried to find employment during the previous 4 weeks.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | Unemployment MSC: DefinitionalChapter 28/Unemployment 1875 32. Every adult who was not employed during the previous 4 weeks is included in the Bureau of Labor Statistics’“unemployed” category.ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | Unemployment MSC: Interpretive33. Someone who is without work but is not looking for work i s included in the Bureau of Labor Statistics’“unemployed” category.ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | Unemployment MSC: Interpretive34. Full-time students and homemakers are included in the Bureau of Labor Statistics’ “unemployed” category. ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | Unemployment MSC: Interpretive35. Stay-at-home fathers are included in the Bureau of Labor Statistics’ “unemployed” category.ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | Unemployment MSC: Interpretive36. Adults who were waiting to be recalled to a job from which they had been laid off are included in the Bureauof Labor Statistics’ “unemployed” category.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | Unemployment MSC: Definitional37. Retirees are included in the Bureau of La bor Statistics’ “not in the labor force” category.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Bureau of Labor Statistics | Labor force MSC: Definitional38. The adult population must equal the sum of the employed, the unemployed, and those not in the labor force. ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Adult population MSC: Interpretive39. The adult population must equal the sum of the employed and the unemployed.ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Adult population MSC: Interpretive40. The Bureau of Labor Statistics defines the labor force as the sum of the employed and the unemployed. ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Bureau of Labor Statistics | Labor force MSC: Definitional41. The labor force minus the number of employed equals the number of unemployed.ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: UnemploymentMSC: Interpretive42. The Bureau of Labor Statistics defines the unemployment rate as the percentage of the adult population that isunemployed.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | Unemployment rate MSC: Definitional1876 Chapter 28/Unemployment43. The Bureau of Labor Statistics defines the unemployment rate as the percentage of the labor force that isunemployed.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | Unemployment rate MSC: Definitional44. The Bureau of Labor Statistics computes unemployment rates for the entire adult population and for morenarrowly defined groups.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | Unemployment rate MSC: Definitional45. The Bureau of Labor Statistics defines the labor-force participation rate as the percentage of the labor forcethat is employed.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Bureau of Labor Statistics | Labor-force participation rate MSC: Definitional46. The Bureau of Labor Statistics defines the labor-force participation rate as the percentage of the total adultpopulation that is in the labor force.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Bureau of Labor Statistics | Labor-force participation rate MSC: Definitional47. The labor-force participation rate is the percentage of the adult population that is either employed orunemployed.ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Interpretive48. The labor-force participation rate tells us the fraction of the population that is able to participate in the labormarket.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Definitional49. The labor-force participation rate tells us the fraction of the population that has chosen to participate in thelabor market.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Definitional50. The Bureau of Labor Statistics computes labor-force participation rates for the entire adult population and formore narrowly defined groups.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Bureau of Labor Statistics | Labor-force participation rate MSC: DefinitionalTable 28-52010 Labor Data for Wrexington51. Refer to Table 28-5. The total adult population of Wrexington in 2010 is 30,000.ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Adult population MSC: ApplicativeChapter 28/Unemployment 1877 52. Refer to Table 28-5. The total adult population of Wrexington in 2010 is 12,250.ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Adult population MSC: Applicative53. Refer to Table 28-5. The labor force of Wrexington in 2010 is 12,250.ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor force MSC: Applicative54. Refer to Table 28-5. The labor force of Wrexington in 2010 is 10,000.ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor force MSC: Applicative55. Refer to Table 28-5. The unemployment rate of Wrexington in 2010 is about 18.4 percent.ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Applicative56. Refer to Table 28-5. The unemployment rate of Wrexington in 2010 is about 7.5 percent.ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Applicative57. Refer to Table 28-5. The labor-force participation rate of Wrexington in 2010 is about 40.8 percent.ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Applicative58. Refer to Table 28-5. The labor-force participation rate of Wrexington in 2010 is about 33.3 percent.ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Applicative59. Within the U.S. population, women ages 20 and older have lower rates of labor-force participation than men. ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Definitional60. Within the U.S. population, women ages 20 and older have similar rates of labor-force participation as men. ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Definitional61. Within the U.S. population, men and women have similar rates of unemployment.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Definitional62. Within the U.S. population, women have higher rates of unemployment than men.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Definitional63. Within the U.S. population, blacks ages 20 and older have similar rates of labor-force participation as whites. ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Definitional1878 Chapter 28/Unemployment64. Within the U.S. population, blacks ages 20 and older have lower rates of labor-force participation than whites. ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Definitional65. Within the U.S. population, blacks have higher rates of unemployment than whites.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Definitional66. Within the U.S. population, blacks and whites have similar rates of unemployment.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Definitional67. Within the U.S. population, teenagers have lower rates of labor-force participation than older workers.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Definitional68. Within the U.S. population, teenagers have similar rates of labor-force participation as older workers.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Definitional69. Within the U.S. population, teenagers have higher rates of unemployment than older workers.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Definitional70. Within the U.S. population, teenagers have similar rates of unemployment as older workers.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Definitional71. Data on the unemployment rate in the U.S. since 1960 show that the economy always has some unemploymentand that the amount changes from year to year.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Definitional72. Data on the unemployment rate in the U.S. since 1960 show that the unemployment rate sometimes is zero. ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Interpretive73. The normal rate of unemployment around which the unemployment rate fluctuates is called the natural rate ofunemployment.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Natural rate of unemployment MSC: Definitional74. The normal rate of unemployment around which the unemployment rate fluctuates is called cyclicalunemployment.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Natural rate of unemployment MSC: DefinitionalChapter 28/Unemployment 1879 75. The deviation of unemployment from its natural rate is called cyclical unemployment.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Cyclical unemploymentMSC: Definitional76. Economists at the Congressional Budget Office estimated that for 2007, the U.S. natural rate of unemploymentwas 4.8 percent.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Natural rate of unemployment MSC: Definitional77. In 2007, the U.S. natural rate of unemployment was estimated to be 4.8 percent, which was close to the actualrate of unemployment of 4.6 percent.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Natural rate of unemployment MSC: Definitional78. Causes of the changing role of women in American society over the past several decades include newtechnologies that have reduced the amount of time required to complete routine household tasks, improved birth control, and changing political and social attitudes.ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Role of women MSC: Interpretive79. Over the past several decades, the difference between the labor-force participation rates of men and women inthe U.S. has gradually decreased.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Definitional80. Over the past several decades, the difference between the labor-force participation rates of men and women inthe U.S. has gradually increased.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Definitional81. Over the past several decades in the United States, the labor-force participation rate of women has increasedand the labor-force participation rate of men had decreased.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Definitional82. Over the past several decades in the United States, the labor-force participation rate of women has increasedand the labor-force participation rate of men had remained steady.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Definitional83. Causes of t he decline in the U.S. men’s labor-force participation rate over the past several decades includeyoung men now staying in school longer than their fathers and grandfathers did, older men now retiring earlier and living longer, and more fathers now staying at home to raise their children.ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Interpretive84. Even though the difference in labor-force participation rates of U.S. males and females has narrowed, thelabor-force participation rate of males remains higher than that of females.ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Labor-force participation rate MSC: Interpretive1880 Chapter 28/Unemployment85. Measuring the amount of unemployment in the economy is a straightforward task.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: UnemploymentMSC: Definitional86. More than one-third of the unemployed are recent entrants into the labor force.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: UnemploymentMSC: Definitional87. More than three-fourths of the unemployed are recent entrants into the labor force.ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: UnemploymentMSC: Definitional88. Not all unemployment ends with the job seeker finding a job.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: UnemploymentMSC: Definitional89. Almost half of all spells of unemployment end when the unemployed person leaves the labor force.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: UnemploymentMSC: Definitional90. Almost nine-tenths of all spells of unemployment end when the unemployed person leaves the labor force. ANS: F DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: UnemploymentMSC: Definitional91. Because people move into and out of the labor force so often, statistics on unemployment are difficult tointerpret.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: UnemploymentMSC: Definitional92. People who report being unemployed but who, in fact, are not trying hard to find a job are really not in thelabor force and therefore cause the reported unemployment rate to be higher than it would otherwise be. ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Interpretive93. Rupert is collecting unemployment insurance benefits. To continue to receive his benefits, he must belooking for work. Because he’d like to continue collecting benefits rather than take a job, he applies at places that are unlikely to hire him. People like Rupert make the reported unemployment rate less than it would otherwise be.ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Interpretive94. People who report being unemployed but who, in fact, are working for “under the table” pay to avoid taxes ontheir earnings are really employed and therefore cause the reported unemployment rate to be higher than it would otherwise be.ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: InterpretiveChapter 28/Unemployment 1881 95. People who report being not in the labor force but who, in fact, want to work but have given up trying to find ajob after an unsuccessful search are really unemployed and therefore cause the reported unemployment rate to be lower than it would otherwise be.ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Interpretive96. Discouraged workers are people who want to work but have given up trying to find a job after an unsuccessfulsearch.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Discouraged workersMSC: Definitional97. It is best to view the official unemployment rate as a useful but imperfect measure of joblessness.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Definitional98. The unemployment rate reported by the Bureau of Labor Statistics clearly understates the true unemploymentrate.ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflation TOP: Unemployment rateMSC: Interpretive99. The Bureau of Labor Statistics defines marginally attached workers as persons who currently are neitherworking nor looking for work but indicate that they want and are available for a job and have looked for work sometime in the recent past.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Bureau of Labor Statistics | Marginally attached workers MSC: Definitional100. The Bureau of Labor Statistics defines discouraged workers as marginally attached workers who have given a job-market related reason for not currently looking for a job.ANS: T DIF: 1 REF: 28-1NAT: Analytic LOC: The study of economics and definitions of economicsTOP: Bureau of Labor Statistics | Discouraged workers MSC: Definitional101. Th e Bureau of Labor Statistics’ U-1 measure of joblessness is smaller than its U-6 measure of joblessness. ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | U-1 | U-6 MSC: Interpretive102. The Bureau o f Labor Statistics’ U-1 measure of joblessness is larger than its U-6 measure of joblessness. ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | U-1 | U-6 MSC: Interpretive103. The Bureau of Labor St atistics’ U-1 measure of joblessness includes only very long-term unemployed. ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | U-1 MSC: Interpretive104. The Bureau of Labor Statistics’ U-2 measure of joblessness includes job losers and job leavers.ANS: F DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | U-2 MSC: Interpretive105. The Bureau of Labor Statistics’ U-3 measure of joblessness is the official unemployment rate.ANS: T DIF: 2 REF: 28-1NAT: Analytic LOC: Unemployment and inflationTOP: Bureau of Labor Statistics | U-3 MSC: Interpretive。