期中A2009解答
2008-2009(上)期中考试七年级数学试题参考答案及评分标...
2008-2009（上）期中考试七年级数学试题参考答案及评分标准一、（本大题10小题，每小题2分，共20分）1.C2.D3.D4.B5.B6.C7.C8.B9.A 10.B二、（本大题有8个小题，每小题3分，共24分） 1. > < < 2. +4 3. 45 -54 45 4. 1 -6 –27 5. –35 6. -31 1 -2x 7. 12 18 8 8. 0 125 26三、（本大题共30分）1. ①解：原式=（-8）- 9 ……2分 原式= -17 ………5分②解：原式=(-5)×(-54)……2分 原式 =4 ………5分③解：原式=-9-30+2 ………2分样 原式 =37 ………5分④解：原式=(1241291210--)×(-24)……1分 原式=(-123)×(-24) ……3分 原式=6……5分 2. ①解：原式=(5x 4+x 4)+(3x 2y-3x 2y)+(-10-1) ………2分 = 6x 4-11 ………5分②3(-ab+2a)-(3a-ab)解：原式=-3ab+6a-3a+ab ………2分=-2ab+3a ………4分3.解：原式=-a 2+1 ………3分当a=-3时原式= －8 ………5分四、（1、2题各6分，共12分）1. ＋4.5－4＋2.3－3.5＋2.5=1.8 所以共超出1.8千克。
………3分总重量为：50×5+1.8=251.8（千克） ………6分2.主视图、左视图各3分五、（1、2、3各4分，3题2分，共14分）1．算式:[6-4-(-1)] ×8=24 或 [7-5-(-6)] ×3=242.ab- 42b π3. 解：∵∣a-2∣+(b+1)2=0 ∴a-2=0 且b+1=0即 a=2 且b=-1 ………2分原式=21a 2b+2ab 2+ab …………3分 当 a=2 b=-1时 原式=0 ………4分4. 13或3一、单项选择（每小题2分，共30分）1．C2．C3．B4．C5．B6．B7．B8．A9．A10．B11．C12．A13．B14．C15．④D二、材料分析题共20分1、（1）这种说法是正确的。
2009期中试题听力原文及答案
2009 期中考试听力原文及答案听力（共两节，计25 分）第一节（共9小题；每小题 1 分，满分9 分）听下面9 段对话。
每段对话后面有一个小题，从题后所给的A,B,C 三个选项中选出最佳选项。
听完每段对话后，你将有10 秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. W: How often do you go to the movies,Tom?M: I go to the movies three times a month.Q: How often does Tom see the movies ?2. M: Why didn ' t you go to shool last week, Liu Qing?W: Because I was ill in hospital.Q: When was LinQing ill in hospital?3. M: Are you going to Hainan for vacation ？W: I thought about going there, but decided on Dalian.Q: Where is the man going for vacatioin?4. M: How long are you staying in London, Lucy?W: I ' m leaving oDnecember 5th and coming back on December 13 th.Q: When is Lucy come back?5. M: How do you uaually go to schoool, Li Mei?W: By bike, but sometimes I take a taxi.Q: Does Li Mei usually get to school by taxi?6. W: Mike, can you come to my party on Saturday?M: Sorry, I can ' t.I have to visit my grandparents.Q: What does Mike have to do?7. W: Jim, Does your cousin often read books at weekends?M: No,she doesn ' t. She oftensgt o ethe mall .Q: Who often goes to the mall at weekends?8. W: Wang Hua, you don ' t look well.M: Yes, I have a bad cold.Q: What ' s the matter with Wang Hua?9. M: Linda, what are you doing on Thursday afternoon?W: Well, I have a piano lesson. What about you, Michacl?M: I ' m playing basketball with my classmate.Q: What is Linda doing on Thursday afternoon ？第二节（共16 小题；每小题 1 分，满分16 分）听下面5 段对话或独白。
2009学年第二学期七年级期中质量检测试题卷
2009学年第二学期七年级期中质量检测答案一、选择题（本题共23小题，每题2分，共46分，每小题只有一个选项是正确的）题号 1 2 3 4 5 6 7 8 9 10 11 12C答案 A B A D B C A C D C D题号13 14 15 16 17 18 19 20 21 22 23答案 C B D B C C C C C D A二、填空题（本题共21空，每空2分，共42分）1、舌根2、形变相互运动状态3、在空气中，光速大于声速反射4、势动5、运动6、 1.5 0.57、 9800 98008、复色光折射 9、没有形成真空10、①、④、⑤ 11、摩擦力12、机械能不断变化不行。
因为月球上没空气，氢燃料无法燃烧。
三、作图题（每题3分，共6分）1、质量为1千克的小球沿斜面滚下，请用力的图示法．．．．．表示出小球所受到的重力。
解：G=mg=1千克×9.8牛/千克=9.8牛2、如图，一束光线从空气中斜射向水面，经水面反射后，反射光线为OB，根据所学知识，在图中补充画出折射光线．．．．并标出折射角．．．．．．r．。
四、问答与计算题（共26分）1、(8分)(1)问题：船前进体现了力的哪个作用效果？解答：力能改变物体的运动状态(2)问题：什么力使船前进的？解答：水对浆向前的推力（本题符合题意的均可得分）2、（4分）(1) 1和3(2) 因为小石头和羽毛球拴在一起后下落反而比小石头单独下落得慢，说明重的物体不一定比轻的物体下落得快。
3、（6分）待求未知量计算公式计算过程与结果示例正方体的体积V=a3V=a3=（10厘米）3=1000厘米3l正方体的重力G=mg G=mg=5千克×9.8牛/千克=49牛2正方体的运动速度V=S/TV=S/T=6米/5秒=1.2米/秒（本题符合题意的均可得分）4、（8分）(1) B（2）、解：T=20/60时=1/3时由V=S/T得。
1分V=S/T=36千米/1/3时=108千米/时。
沪科版化学高三上学期期中试题及解答参考
沪科版化学高三上学期期中模拟试题(答案在后面)一、单项选择题（本大题有16小题，每小题3分，共48分）1、下列关于化学键的说法正确的是（）A. 共价键中，原子间通过共用电子对形成化学键B. 离子键中，原子间通过共用电子对形成化学键C. 金属键中，原子间通过共用电子对形成化学键D. 氢键中，原子间通过共用电子对形成化学键2、下列关于化学反应速率的说法正确的是（）A、反应速率与反应物的浓度无关B、反应速率与温度成正比C、反应速率与催化剂无关D、反应速率与压强无关3、下列关于化学反应速率的叙述，正确的是（）A、反应速率越大，反应进行得越快B、反应速率越快，反应热越大C、反应速率与反应时间成正比D、反应速率与反应物的质量成正比4、下列关于化学键类型的说法中，正确的是（）A. 离子键只存在于金属元素与非金属元素之间B. 共价键的形成一定是原子间电子的得失C. 金属元素和非金属元素之间可能形成共价键D. 金属元素和非金属元素之间只能形成离子键5、下列关于化学反应速率的说法正确的是（）A. 反应速率与反应物的浓度成正比B. 温度越高，反应速率越快C. 压强对反应速率没有影响D. 使用催化剂可以增加反应速率，但不会改变反应的平衡6、下列物质中，属于有机高分子化合物的是（）A. 二氧化硅B. 氯化钠C. 聚乙烯D. 碳酸钙7、下列关于化学反应速率的说法中，正确的是（）A、反应速率越快，反应时间一定越短B、升高温度，反应速率一定加快C、反应物浓度越大，反应速率一定越快D、反应物固体表面积越大，反应速率一定越快8、下列物质中，不属于强电解质的是（）A、NaCl（氯化钠）B、H2SO4（硫酸）C、NaOH（氢氧化钠）D、HCl（氯化氢）9、下列物质中，不属于有机高分子化合物的是（）A. 聚乙烯醇B. 聚氯乙烯C. 聚丙烯酸D. 氢氧化钠10、下列物质中，属于非电解质的是：A. 氯化钠（NaCl）B. 硫酸（H2SO4）C. 氨水（NH3·H2O）D. 乙醇（C2H5OH）11、下列物质中，不属于酸碱中和反应的是（）A. NaOH + HCl → NaCl + H2OB. 2KOH + H2SO4 → K2SO4 + 2H2OC. Ca(OH)2 + CO2 → CaCO3↓ + H2OD. Al(OH)3 + HCl → AlCl3 + H2O12、下列关于化学反应速率的描述正确的是（）A. 化学反应速率与反应物浓度成正比B. 反应物浓度越高，化学反应速率一定越快C. 温度越高，化学反应速率越快D. 压力对固体化学反应速率无影响13、下列关于化学反应速率的说法中，正确的是（）A. 反应物浓度越大，反应速率越慢B. 温度升高，任何化学反应的速率都会减小C. 催化剂可以改变反应途径，从而影响反应速率D. 对于所有的化学反应，增加压力都会加快反应速率14、在下列化学反应中，不属于氧化还原反应的是：A、2H₂O → 2H₂↑ + O₂↑B、2NaCl + 2H₂O → 2NaOH + HCl↑C、Fe + CuSO₄ → FeSO₄ + CuD、C + 2CuO → 2Cu + CO₂↑15、下列关于化学键类型的描述中，正确的是（）A、所有金属和非金属之间形成的化合物都是离子化合物。
2008-2009学年九年级数学第一学期期中测试及答案(1)全国通用
2008-2009学年第一学期九年级数学期中测试一、填空题（每空2分，共36分）1、直接写出方程的解x 2－3x=0 , x 2-3x+2=0 (x-1)2=4 .2、方程2230x ax -+=有一个根是1，则a 的值是 ,另一根为. 3、一元二次方程x 2-2x-1=0的根的判别式的值为，由此可知方程的根的情况是 4、已知1x ，2x 是方程2630x x ++=的两实数根，则x 1+x 2=_____x 1.x 2=_____ . 5、写出一个以4和-1为根的一元二次方程是.6、如果23=b a ，那么aa b=+___________, 若分式3652-+-x x x 的值为0，则x=. 7、若两相似三角形的相似比为3:5，较小三角形面积为18，则较大三角形的面积为. 8、在比例尺1：2000的地图上测得AB 两地间的图上距离为5cm,则AB 两地间的实际距离为m .9、如图1，将线段AB 平移，使B 点到C 点，则平移后A 点的坐标为.10、如图2，已知∠ACB ＝∠CBD ＝90°，AC ＝8，CB ＝2，当BD=时，∆ACB ∽△CBD . 11、如图3,已知三个边长分别为3、5、7的正方形如图排列，则图中阴影部分面积为.12、如图4，为了测量油桶内油面的高度，将一根细木棒自油桶小孔，插入桶内测得木棒插入部分AB 的长为100cm ，木棒上沾油部分DB 的长为60cm ，桶高AC 为80cm ，那么桶内油面CE 的高度是cm .二、选择题（每小题3分，共21分）13、下列关于x 的方程中，一定是一元二次方程的是 ( )(A)a x 2+ bx ＋c ＝0 （B ）（x+2）(x-3)=()21-x （C ）x 2＋1＝0 （D ）11=+x x14、方程2269x x -=的二次项系数、一次项系数、常数项分别为 ( )(A)6、2、9 （B ）2、-6、9 （C ） 2、-6、-9 （D ） -2、6、9 15、下列一元二次方程中,有实数根是( ).图2 图1图3图4ABC Dab某某 班级 学号:------------------------------------------------------------------------------------------------------------------------------------------------ ---DA(A)x 2-x+1=0 （B ）x 2-2x+3=0； （C ）x 2+4=0 （D ）x 2+x-1=016、下列各组图形有不一定相似的是 ( )(A)两个等腰直角三角形； （B ）各有一个角是100°的两个等腰三角形； （C ）各有一个角是50°的两个直角三角形；（D ）两个矩形；17、如图，小正方形的边长均为1，则下列图中的三角形(阴影部分)与△ABC相似的是( )18、如图9，在△ABC 中，AD =DE =EF =FB ，AG =GH =HI =IC ，已知BC =2，则DG +EH +FI 的长是 ( ) (A)25（B ）3（C ）23（D ）4 19、 如图，大正方形中有2个小正方形，如果它们的面积分别是S 1、S 2 ，那么S 1、S 2的大小关系是 （ ） (A)S 1<S 2 （B ）S 1 > S 2（C ）S 1 = S 2（D ）S 1、S 2 的大小关系不确定三、解答题20、按要求解下列方程（每小题4分共12分）① x 2-4x=3 (配方法) ②(x-1)(x+5)=7 ③()8122=+x21、（4分）把一块长为3米，宽为2米台布铺在一X 长方形的桌面上，各边垂下的长度相同。
2009学年度下学期期中考试七年级数学带答案
2009～2010学年度第二学期期中考试七年级数学试题卷一、选择题（每小题3分，共36分）下列各题均有四个备选答案，有且只有一个正确答案，请将正确答案填在答题卷上. 1、点A(－2，1)在A ．第一象限B ．第二象限C ．第三象限D ．第四象限 2 、下列图形中，∠1和∠2是对顶角的是3、如图，下列条件中不能判定AB∥CD 的是A ．∠3＝∠4 B．∠1＝∠5 C ．∠1＋∠4＝180° D ．∠3＝∠54、用形状、大小完全相同的下列图形，不能进行平面镶嵌的是 A ．三角形 B ．四边形 C ．正五边形 D ．正六边形5、以下列每组长度的三条线段为边能组成三角形的是 A ． 2、3、6 B ．2、4、6 C ．2、2、4 ．D.6、6、6 6、观察下面图案，在A 、B 、C 、D 四幅图案中，能通过图案(1)平移得到的是7、已知点P （6-a, a ），点P 到两坐标轴的距离相等，且P 点在第一象限，则P 点 坐标为 A ．（1，1） B ．（3, 3） C ．（2,1） D ．（2，2） 8、平面直角坐标系中，点A （3，2），且AF ⊥y 轴，则F 的坐标可能是 A ．（1，1） B ．（4，2） C ．（3，3） D ．（3，—2）9、如图，AD 是△CAB 的角平分线，∠B=34°，∠DAC=30°,则∠ACB 度数是 A ． 96° B ．86° C ． 76° D ．60°10、如图，B 处在A 处的南偏西65°方向，C 处在A 处的南偏东15°方向，C 处在B 处的北偏东85°方向，则∠ACB 的度数为A ．80°B ．75°C ．85°D ．70° 11、如图，小林从P 点向西直走12米后，向左转，转动的角度为α，再走12米，如此重复，小林共走了108米回到点P ，则α的度数为A ．30°B ．40°C ．50°D ．60°(1) A B C D12A 12B 12C D 1 2P αα 北南 A B C321FEGD A12、如图，∠BAC 与∠DCA 的平分线相交于点G ，AB ∥FG ∥CD ， GE 、GF 分别是△ACG 的高和中线，GH ⊥CD 于H.下列说法： ①AG ⊥CG ；②∠BAG ＝∠CGE ；③S △AFG＝S △CFG ；④若∠EGH ︰∠ECH ＝2︰7，则∠EGF ＝50°. 其中正确的有A ． ①②③④B ． ②③④C ． ①③④D ． ①②④ 二、填空题（每题3分，共12分）：13、教室里的座位整齐摆放，若小明坐在第四排第六列，用有序数对（4，6）表示， 则有序数对（3，2）表示的含义是坐在 .14、有两边相等的三角形一边长为2cm ，另一边长为4cm ，则此三角形的周长为_____cm. .15、如图，在第一、四象限内有一列坐标有规律．．．．．的点：A 1（1，1）、A 2（2，－4）、 A 3（3，5）、A 4（4，－2）、A 5（5，9）、A 6（6，34-）、A 7（7，13）、 A 8（8，－1）、……依此规律，A 9的坐标为＿＿＿＿，A 10的坐标为＿＿＿＿.16、如图，把一张长方形纸条ABCD 沿AF 折叠，已知30=∠ADB ，当BAF ∠的度数为_____ 时，AE ∥BD .三、解答题（共9小题，共72分） 17、（本题6分）△ABC 中，∠C=50°，∠A=∠B+10°，求∠B 的度数.18、（本题6分）如图，已知AB 、CD 、EF 相交于O 点，AB ⊥CD ，50=∠DOF ，求AOF ∠和AOE ∠的度数.19、（本题6分）完成下列的推导过程：已知：如图， BD ⊥AC 、EF ⊥AC ，∠1＝∠2. 求证：GD ∥BC.证明：∵ BD ⊥AC 、EF ⊥AC ，（已知），∴ ∠BDC ＝∠EFC=90°（ ）， ∴ ∥ （同位角相等，两直线平行）， ∴ ∠3＝ （两直线平行，同位角相等）. 又∵ ∠1＝∠2 （已知），∴ ＝ （等量代换），∴ ∥ （ ）.20、（本题8分）如图，四边形中，点E 在BC 上，∠A ＋∠ADE ＝180°，∠B ＝78°，∠C ＝60°，求∠EDC 的度数. 21、（本题8分）如图，已知ABC △的三个顶点的坐标分别为(23)A -，、(60)B -，、(10)C -，．（1）请直接写出点A 关于x 轴对称的点的坐标；（2）将ABC △向右平移7个单位长度．画出图形，直接写出点A 的对应点的坐标； （3）请直接写出：以A B C 、、为顶点的平行四边形的第四个顶点D 的坐标． 22、（本题8分）、直线MN 与直线AB 、CD 分别交于点E 、F ，∠1=∠CFN .（1）如图1，试判定直线AB 与直线CD 的位置关系，并说明理由；（2）如图2，BEF ∠与EFD ∠的角平分线交于点P ，EP 与CD 交于点G ，点H 是MN上一点，且GH ⊥E G ．求证：PF ∥GH ．23、（本题8分）如图，AB ∥CD ，∠1+∠2=180°，试给出∠EFM 与∠NMF 的大小关系，并说明理由．24、（本题10分）如图，已知ABC Δ中A （-2，4），B （6，2）. 图121EF MNDCB A（1）求ABO Δ的面积； （2）求线段OC 的长；（3）在x 轴上是否存在一点M ，使6=∆C BM S ；若存在，请求点M 的坐标，若不存在，请说明理由．25、（本题12分）如图，在平面直角坐标系中，△AOB 是直角三角形，∠AOB=90°，斜边AB 与y 轴交于点C ．（1）若∠A=∠AOC ，求证：∠B=∠BOC ；（2）延长AB 交x 轴于点E ，过O 作OD ⊥AB ，且∠的度数；（3）如图，OF 平分∠AOM ，∠BCO 的平分线交FO 的延长线于点P 。
2009年九年级数学上期中试卷及答案下载_2
2009 学年第一学期天河区初三期中考试答题卡(数学科)考号:学校__________班级_____姓名________座位号______注意事项 :1、答题前，考生务必用黑色字迹的钢笔或铅笔填写准考证号姓名、试室号、座位号，再用 2B 铅笔把试室号、座位号的对应数字涂黑。
2、保持卡面清洁，不要折叠，不要弄破。
第 1 页（共 4 页）[0] [0] [0] [0] [0] [0] [0] [0] [0] [0] [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] [2] [2] [2] [2] [2] [2] [2] [2] [2] [2] [3] [3] [3] [3] [3] [3] [3] [3] [3] [3] [4] [4] [4] [4] [4] [4] [4] [4] [4] [4] [5] [5] [5] [5] [5] [5] [5] [5] [5] [5] [6] [6] [6] [6] [6] [6] [6] [6] [6] [6] [7] [7] [7] [7] [7] [7] [7] [7] [7] [7] [8] [8] [8] [8] [8] [8] [8] [8] [8] [8] [9] [9] [9] [9] [9] [9] [9] [9] [9] [9]单12选3题45[A] [B] [C] [D] [A] [B] [C] [D] [A] [B] [C] [D] [A] [B] [C] [D] [A] [B] [C] [D]6 [A] [B] [C] [D] 7 [A] [B] [C] [D] 8 [A] [B] [C] [D] 9 [A] [B] [C] [D] 10 [A] [B] [C] [D]二、填空题题号111213141516答案17、解：18、解：119、解： 20、解： 21、解：22009 学年第一学期天河区初三期中考试答题卡(数学科)考号:学校__________班级_____姓名________座位号______注意事项 :1、答题前，考生务必用黑色字迹的钢笔或铅笔填写准考证号姓名、试室号、座位号，再用 2B 铅笔把试室号、座位号的对应数字涂黑。
货币银行学 期中考试
中山大学管理学院2009学年度第一学期《货币银行学》期中考试试题A卷考试日期：2009 年11月27 日晚上19：00-21：00考试时间： 120分钟考试形式：闭卷班级：姓名：学号：要求：将答案写在答题纸上，试卷与答题纸一起交上来！1) Financial markets have the basic function of AA) getting people with funds to lend together with people who want to borrow funds.B) assuring that the swings in the business cycle are less pronounced.C) assuring that governments need never resort to printing money.D) providing a risk-free repository of spending power.2) Financial markets improve economic welfare because BA) they channel funds from investors to savers.B) they allow consumers to time their purchase better.C) they weed out inefficient firms.D) eliminate the need for indirect finance.3) Secondary markets make financial instruments more CA) solid.B) vapid.C) liquid.D) risky.4) An important financial institution that assists in the initial sale of securities in the primary A market is theA) investment bank.B) commercial bank.C) stock exchange.D) brokerage house.5) Which of the following instruments are traded in a money market? BA) State and local government bonds.B) U.S. Treasury bills.C) Corporate bonds.D) U.S. government agency securities.6) Bonds that are sold in a foreign country and are denominated in the countryʹs currency in A which they are sold are known asA) foreign bonds.B) Eurobonds.C) equity bonds.D) country bonds.7) Adverse selection is a problem associated with equity and debt contracts arising from AA) the lender’s relative lack of information about the borrower’s potential returns and risksof his investment activities.B) the lender’s inability to legally require sufficient collateral to cover a 100% loss if the borrower defaults.C) the borrower’s lack of incentive to seek a loan for highly risky investments.D) the borrower’s lack of good options for obtaining funds.8) Which of the following are not contractual savings institutions? BA) Life insurance companiesB) Credit unionsC) Pension fundsD) State and local government retirement funds9) The purpose of the disclosure requirements of the Securities and Exchange Commission is to AA) increase the information available to investors.B) prevent bank panics.C) improve monetary control.D) protect investors against financial losses.10) Economists find no completely satisfactory way to measure money because CA) money supply statistics are a state secret.B) the Federal Reserve does not employ or report different measures of the money supply.C) the moneyness or liquidity of an asset is a matter of degree.D) economists find disagreement interesting and refuse to agree for ideological reasons.11) Currency includes AA) paper money and coins.B) paper money, coins, and checks.C) paper money and checks.D) paper money, coins, checks, and savings deposits.12) Money is AA) anything that is generally accepted in payment for goods and services or in therepayment of debt.B) a flow of earnings per unit of time.C) the total collection of pieces of property that are a store of value.D) always based on a precious metal like gold or silver.13) Which of the following statements uses the economistsʹ definition of money? CA) I plan to earn a lot of money over the summer.B) Betsy is rich she has a lot of money.C) I hope that I have enough money to buy my lunch today.D) The job with New Company gave me the opportunity to earn more money.14) Of money’s three functions, the one that distinguishes money from other assets is its function as a DA) store of value.B) unit of account.C) standard of deferred payment.D) medium of exchange.15) The conversion of a barter economy to one that uses money CA) increases efficiency by reducing the need to exchange goods and services.B) increases efficiency by reducing the need to specialize.C) increases efficiency by reducing transactions costs.D) does not increase economic efficiency.16) When money prices are used to facilitate comparisons of value, money is said to function as a AA) unit of account.B) medium of exchange.C) store of value.D) payments-system ruler.17) In a barter economy the number of prices in an economy with N goods is AA) [N(N - 1)]/2.B) N(N/2).C) 2N.D) N(N/2) - 1.18) Increasing transactions costs of selling an asset make the asset CA) more valuable.B) more liquid.C) less liquid.D) more moneylike.19) If the price level doubles, the value of money DA) doubles.B) more than doubles, due to scale economies.C) rises but does not double, due to diminishing returns.D) falls by 50 percent.20) When paper currency is decreed by governments as legal tender, legally it must be ______C__.A) paper currency backed by goldB) a precious metal such as gold or silverC) accepted as payment for debtsD) convertible into an electronic payment21) Which of the following sequences accurately describes the evolution of the payments system? AA) Barter, coins made of precious metals, paper currency, checks, electronic funds transfersB) Barter, coins made of precious metals, checks, paper currency, electronic funds transfersC) Barter, checks, paper currency, coins made of precious metals, electronic funds transfersD) Barter, checks, paper currency, electronic funds transfers22) Recent financial innovation makes the Federal Reserve’s job of conducting monetary policy DA) easier, since the Fed now knows what to consider money.B) more difficult, since the Fed now knows what to consider money.C) easier, since the Fed no longer knows what to consider money.D) more difficult, since the Fed no longer knows what to consider money.23) Of the following, the largest is DA) money market deposit accounts.B) demand deposits.C) M1.D) M2.24) If an individual moves money from a demand deposit account to a money market deposit account, AA) M1 decreases and M2 stays the same.B) M1 stays the same and M2 increases.C) M1 stays the same and M2 stays the same.D) M1 increases and M2 decreases.25) To claim that a lottery winner who is to receive $1 million per year for twenty years has won $20 million ignores the concept of DA) face value.B) par value.C) deflation.D) discounting the future.26) Economists consider the ________ to be the most accurate measure of interest rates. CA) simple interest rate.B) current yield.C) yield to maturity.D) real interest rate.27) If a security pays $110 next year and $121 the year after that, what is its yield to maturity if it sells for $200? BA) 9 percentB) 10 percentC) 11 percentD) 12 percent28) A fully amortized loan is another name for BA) a simple loan.B) a fixed-payment loan.C) a commercial loan.D) an unsecured loan.29) A ________ pays the owner a fixed coupon payment every year until the maturity date, when the ________ value is repaid. CA) coupon bond; discountB) discount bond; discountC) coupon bond; faceD) discount bond; face30) The price of a coupon bond and the yield to maturity are ________ related; that is, as the yield to maturity ________, the price of the bond ________. DA) positively; rises; risesB) negatively; falls; fallsC) positively; rises; fallsD) negatively; rises; falls31) Which of the following are true for discount bonds? BA) A discount bond is bought at par.B) The purchaser receives the face value of the bond at the maturity date.C) U.S. Treasury bonds and notes are examples of discount bonds.D) The purchaser receives the par value at maturity plus any capital gains.32) What is the return on a 5 percent coupon bond that initially sells for $1,000 and sells for $900 next year? DA) 5 percentB) 10 percentC) -5 percentD) -10 percent33) Which of the following are true concerning the distinction between interest rates and returns?AA) The rate of return on a bond will not necessarily equal the interest rate on that bond.B) The return can be expressed as the difference between the current yield and the rate ofcapital gains.C) The rate of return will be greater than the interest rate when the price of the bond falls between time t and time t + 1.D) The return can be expressed as the sum of the discount yield and the rate of capital gains.34) The nominal interest rate minus the expected rate of inflation AA) defines the real interest rate.B) is a less accurate measure of the incentives to borrow and lend than is the nominalinterest rate.C) is a less accurate indicator of the tightness of credit market conditions than is the nominal interest rate.D) defines the discount rate.35) In which of the following situations would you prefer to be borrowing? DA) The interest rate is 9 percent and the expected inflation rate is 7 percent.B) The interest rate is 4 percent and the expected inflation rate is 1 percent.C) The interest rate is 13 percent and the expected inflation rate is 15 percent.D) The interest rate is 25 percent and the expected inflation rate is 50 percent.36) Everything else held constant, if the expected return on U.S. Treasury bonds falls from 8 to 7 percent and the expected return on corporate bonds falls from 10 to 8 percent, then theexpected return of corporate bonds ________ relative to U.S. Treasury bonds and the demandfor corporate bonds ________. DA) rises; risesB) rises; fallsC) falls; risesD) falls; falls37) You would be less willing to purchase U.S. Treasury bonds, other things equal, if C OR DA) you inherit $1 million from your Uncle Harry.B) you expect interest rates to fall.C) gold becomes more liquid.D) stocks become easier to sell.38) Everything else held constant, when households save less, wealth and the demand for bonds________ and the bond demand curve shifts ________. DA) increase; rightB) increase; leftC) decrease; rightD) decrease; left39) Everything else held constant, if interest rates are expected to fall in the future, the demand forlong-term bonds today ________ and the demand curve shifts to the ________. AA) rises; rightB) rises; leftC) falls; rightD) falls; left40) When the inflation rate is expected to increase, the ________ for bonds falls, while the ________ curve shifts to the right, everything else held constant. BA) demand; demandB) demand; supplyC) supply; demandD) supply; supply41) When the interest rate changes, DA) the demand curve for bonds shifts to the right.B) the demand curve for bonds shifts to the left.C) the supply curve for bonds shifts to the right.D) it is because either the demand or the supply curve has shifted.42) Everything else held constant, when prices in the art market become more uncertain, CA) the demand curve for bonds shifts to the left and the interest rate rises.B) the demand curve for bonds shifts to the left and the interest rate falls.C) the demand curve for bonds shifts to the right and the interest rate falls.D) the supply curve for bonds shifts to the right and the interest rate falls.43) In Keynes’s liquidity preference framework, as the expected return on bonds increases (holding everything else unchanged), the expected return on money ________, causing the demand for ________ to fall. BA) falls; bondsB) falls; moneyC) rises; bondsD) rises; money44) The opportunity cost of holding money is CA) the level of income.B) the price level.C) the interest rate.D) the discount rate.45) In the Keynesian liquidity preference framework, an increase in the interest rate causes the demand curve for money to ________, everything else held constant. CA) shift rightB) shift leftC) stay where it isD) invert46) In the Keynesian liquidity preference framework, a rise in the price level causes the demandfor money to ________ and the demand curve to shift to the ________, everything else held constant. BA) increase; leftB) increase; rightC) decrease; leftD) decrease; right47) In the liquidity preference framework, a one-time increase in the money supply results in aprice level effect. The maximum impact of the price level effect on interest rates occurs AA) at the moment the price level hits its peak (stops rising) because both the price level and expected inflation effects are at work.B) immediately after the price level begins to rise, because both the price level and expected inflation effects are at work.C) at the moment the expected inflation rate hits its peak.D) at the moment the inflation rate hits it peak.48) If the Fed wants to permanently lower interest rates, then it should raise the rate of money growth if DA) there is fast adjustment of expected inflation.B) there is slow adjustment of expected inflation.C) the liquidity effect is smaller than the expected inflation effect.D) the liquidity effect is larger than the other effects.49) Of the four effects on interest rates from an increase in the money supply, the one that worksin the opposite direction of the other three is the AA) liquidity effect.B) income effect.C) price level effect.D) expected inflation effect.50) The risk that interest payments will not be made, or that the face value of a bond is not repaid when a bond matures is DA) interest rate risk.B) inflation risk.C) moral hazard.D) default risk.51) Other things being equal, an increase in the default risk of corporate bonds shifts the demand curve for corporate bonds to the ________ and the demand curve for Treasury bonds to the________. CA) right; rightB) right; leftC) left; rightD) left; left52) Which of the following long-term bonds has the highest interest rate? AA) Corporate Baa bondsB) U.S. Treasury bondsC) Corporate Aaa bondsD) Municipal bonds53) The spread between interest rates on low quality corporate bonds and U.S. government bonds AA) widened significantly during the Great Depression.B) narrowed significantly during the Great Depression.C) narrowed moderately during the Great Depression.D) did not change during the Great Depression.54) The term structure of interest rates is DA) the relationship among interest rates of different bonds with the same maturity.B) the structure of how interest rates move over time.C) the relationship among the term to maturity of different bonds.D) the relationship among interest rates on bonds with different maturities.55) According to the expectations theory of the term structure BA) the interest rate on long-term bonds will exceed the average of short-term interest ratesthat people expect to occur over the life of the long-term bonds, because of theirpreference for short-term securities.B) interest rates on bonds of different maturities move together over time.C) buyers of bonds prefer short-term to long-term bonds.D) buyers require an additional incentive to hold long-term bonds.56) If the expected path of one-year interest rates over the next five years is 4 percent, 5 percent, 7 percent, 8 percent, and 6 percent, then the expectations theory predicts that today’s interestrate on the five-year bond is CA) 4 percent.B) 5 percent.C) 6 percent.D) 7 percent.57) According to the segmented markets theory of the term structure BA) bonds of one maturity are close substitutes for bonds of other maturities, therefore,interest rates on bonds of different maturities move together over time.B) the interest rate for each maturity bond is determined by supply and demand for thatmaturity bond.C) investorsʹ strong preferences for short-term relative to long-term bonds explains whyyield curves typically slope downward.D) because of the positive term premium, the yield curve will not be observed to bedownward-sloping.58) According to the liquidity premium theory of the term structure BA) bonds of different maturities are not substitutes.B) if yield curves are downward sloping, then short-term interest rates are expected to fallby so much that, even when the positive term premium is added, long-term rates fallbelow short-term rates.C) yield curves should never slope downward.D) interest rates on bonds of different maturities do not move together over time.59) If 1-year interest rates for the next five years are expected to be 4, 2, 5, 4, and 5 percent, and the 5-year term premium is 1 percent, than the 5-year bond rate will be DA) 2 percent.B) 3 percent.C) 4 percent.D) 5 percent.60) According to the liquidity premium theory of the term structure, a flat yield curve indicates that short-term interest rates are expected to CA) rise in the future.B) remain unchanged in the future.C) decline moderately in the future.D) decline sharply in the future.61) Bank reserves include CA) deposits at the Fed and short-term treasury securities.B) vault cash and short-term Treasury securities.C) vault cash and deposits at the Fed.D) deposits at other banks and deposits at the Fed.62) Bank，s make their profits primarily by issuing ________. CA) equityB) negotiable CDsC) loansD) NOW accounts63) When a new depositor opens a checking account at the First National Bank, the bankʹs assets ________ and its liabilities ________. AA) increase; increaseB) increase; decreaseC) decrease; increaseD) decrease; decrease64) Holding all else constant, when a bank receives the funds for a deposited check, AA) cash items in the process of collection fall by the amount of the check.B) bank assets increase by the amount of the check.C) bank liabilities decrease by the amount of the check.D) bank reserves increase by the amount of required reserves.65) A $5 million deposit outflow from a bank has the immediate effect of AA) reducing deposits and reserves by $5 million.B) reducing deposits and loans by $5 million.C) reducing deposits and securities by $5 million.D) reducing deposits and capital by $5 million.66) A bank with insufficient reserves can increase its reserves by BA) lending federal funds.B) calling in loans.C) buying short-term Treasury securities.D) buying municipal bonds.67) A bank will want to hold more excess reserves (everything else equal) when BA) it expects to have deposit inflows in the near future.B) brokerage commissions on selling bonds increase.C) the cost of selling loans falls.D) the discount rate decreases.68) All of the following are examples of off-balance sheet activities that generate fee income for banks except DA) foreign exchange trades.B) guaranteeing debt securities.C) back-up lines of credit.D) selling negotiable CDs.。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
上海海事大学高等数学A 期中试题(答案)
注：各主观题答案中每步得分是标准得分，实际得分应按下式换算：第步实际得分本题实际得分解答第步标准得分
解答总标准得分
N =N ⨯
一、单项选择题（在每个小题四个备选答案中选出一个正确答案，填在题末的括号中） (本大题分5小题, 每小题4分, 共20分)
1、D
2、D
3、 C
4、 (B)
5、 (A)
二、解答下列各题
(本大题共3小题，总计10分)
1、π4
2、 I 1>I 3>I 2(写大于等于不扣分)
三、解答下列各题
(本大题共8小题，总计32分)
1、(本小题8分)
u x e x (,,)236= （4分）
d
d (,,)x u x
e x 2366= （8分）
∂∂u x e (,,)1236
6= （10分）
2、(本小题8分)
d d d u f
e x
f e y x y =+12 （10分）
3、(本小题8分)
4、(本小题8分)
四、解答下列各题
(本大题共2小题，总计15分)
1、(本小题7分)
由高斯公式
2、(本小题8分) 解：由于lim ()()
x y kx x x y xy x y k k k →=→+++=+++0042232222
322321321与k 有关 6分 所以lim ()
x y kx x x y xy x y →=→+++0042
23
22232不存在。
10分
五、解答下列各题
( 本 大 题7分 )
点(,,)102对应t =1 （2分） 对应的切线方向向量 =⎧⎨⎩⎫
⎬⎭0032,, （6分） 切线方程 x y z -==-1
002
32
或x y ==⎧⎨⎩1
0 （8分） 法平面方程
z -=20
或 z =2 （10分）
六、解答下列各题
( 本 大 题8分 )
由⎩⎨⎧=+--==+-=04240
342y x z y x z y x ，得驻点1
21,⎛⎝ ⎫⎭⎪
5分 D z z z z xx xy
yx yy ==---=-<24
42200 8分
点121,⎛⎝ ⎫
⎭⎪非极值点。
故此函数无极值。
10分 七、解答下列各题
( 本 大 题8分 )
211=+=z e y
x z ∂∂
21
1=+=z e x y z ∂∂
{}
αααα∂∂sin ,cos 21,21
sin 21cos 21⋅⎭⎬⎫
⎩⎨⎧
=+=l z （5分）
其中{} l =cos ,sin αα与⎭⎬⎫
⎩⎨⎧=21,21g
l 与 g 同向时，方向导数取最大值∂∂z l =221
；
l 与 g 反向时，方向导数取最小值∂∂z l =221
-；
（10分）。