成都理工电子系统卷三
传感器原理
《传感器原理及应用》试卷四一、填空题：（共20空，每空1分，共20分）1、传感器一般由 、 、 测量电路和辅助电源四个部分组成。
2、气敏电阻传感器是利用半导体对气体的__________作用而使其__________发生变化的现象来检测气体的成分和浓度。
气敏电阻传感器通常由 、 和封装体等三部分组成。
3、为减少电容式传感器在使用中存在的______________，可以在结构上加保护电极，但要求保护电极和被保护电极要为______________。
4、变隙式电感式传感器与螺线管式电感式传感器都可以用来测位移， _____________线性范围大，______________测量灵敏度高。
5、霍尔片越厚其霍尔灵敏度系数越__________（大或小），霍尔灵敏度系数的含义是指____________________________________________。
6、热电偶产生的热电势一般由 和 组成。
7、压电元件可以等效成_________和_________并联的形式，若用来测量体重一般________（可以或不可以）。
8、光电倍憎管的结构由 、 、 和玻璃罩四部分组成，二、单一选择题（共5题，每题2分，共10分）9、如图1为实心柱体上粘贴的应变片，下列说法正确的是（ ）Ａ、Ｒ１为拉应变 Ｂ、Ｒ２为拉应变 Ｃ、Ｒ１为压应变 Ｄ、Ｒ２无应变。
10、一般在家用数码摄象机中用于成像的器件是（）A 、 光敏电阻B 、CCD 电荷偶合器件 B 、C 、光电偶合器件D 、光电三极管11、两个型号相同的压电片串联使用时，下列说法正确的是（ ）A 、等效输出电荷增大一倍B 、等效输出电压不变C 、等效输出电荷不变D 、等效输出电容不变12、有关光敏电阻的描述，正确的是（ ）A 、暗电阻大B 、亮电阻大C 、暗电流大D 、亮电流小图113、热电偶的冷端补偿方式不包含（ ）A 、计算修正法B 、标准电极法C 、冷端延长法D 、电桥补偿法三、简答题：（共8题，每题5分，共40分）14、传感器的标定有哪两种？标定的目的是什么/15、如何克服电容传感器的寄生电容？16、简述热电偶中间导体定律的内容及使用价值。
成都理工大学学报(自然科学版)第38卷(2011年)总目次
第 １ （ 第 １ ４期 ） 期 总 ６
云 南保 山 盆 地生 物气 源岩 生物 标 志化 合 物特 征 … … … … … … … … … … … … … … … … 沈 忠 民 ， 大彬 ， 四兵 ， （ １ ） 印 刘 等 … … … … … … … … 王 国茹 ， 洪德 ， 志 军 ， （７ ） 陈 朱 等
川 东南 一湘 西地 区志 留 系小 河 坝 组 砂 岩 中重 矿 物 特 征 及 地 质 意 义
东 营 凹 陷 沙 河街 组 第 ２ 三角 洲 前 缘 砂 体 的夹 层 分 布 模 式 … … … … … … … … … … … … … … … … … … … … 国景 星 （ ５） 段 １
原 油及 其 族 组 分 裂 解 过 程 中产 物 组 成 变 化 特 征 ………………………………………… 唐小强 ， 光辉 。 黄 张 敏 ， （ １） 等 ２
鄂 尔 多 斯 盆 地 西 北 部 盒 ８ 浅 水 三 角 洲 砂 体 成 因及 分 布 模 式 … … … … … … … …… … 李 段
洁 ， 洪德 ， 良彪 ， （３ ） 陈 林 等 １ ２
考 虑二 次梯 度 的 非线 性 双 重 介 质 渗 流模 型 … … … … … … … … … … … … … … … … … … 王 本 成 ， 国新 ， 建 国 ， （４ ） 石 路 等 １ ｏ 川 西 拗 陷须 家河 组致 密 砂 岩成 岩作 用特 征 及 其 对 储 层 的影 响 … … … … … … … … … … … … 李 嵘 ， 正祥 ， 素娟 （４ ） 吕 叶 １ ７
汶 川强 震 区都 江堰 虹 口小 沟地 震 泥 石 流 灾 害调 查 研 究
2022年成都理工大学工商管理专业《管理学》科目期末试卷B(有答案)
2022年成都理工大学工商管理专业《管理学》科目期末试卷B（有答案）一、选择题1、在组织设计中，用来描述组织中各项工作标准化以及员工行为受规则和程序约束程度的变量或要素是（）。
A．工作专门化 B．正规化C．管理跨度D．部门化2、钱德勒是最早对战略和结构的关系进行研究的管理学家，他研究的结论是（）。
A．结构跟随战略B．战略跟随结构C．战略与结构无关D．不同组织的战略与其结构的关系各不相同，需要权变理解3、管理中与激励问题有关的公平理论是由（）提出的。
A．马斯洛B．麦格雷戈C．赫茨伯格D．亚当斯4、公司产品设计部接受了一项紧急任务，该任务的完成需要进行严密的控制，同时又要争取时间和速度。
在这种情况下，最适合采用哪种沟通网络？（）A．Y式沟通网络 B．全通道式沟通网络C．轮式沟通网络 D．环式沟通网络5、在不确定情况下，除了有限信息的影响之外，另一个影响决策结果的因素是（）。
A．风险性 B．环境的复杂性C．决策者心理定位 D．决策的时间压力6、组织行为学尤其关注的是（）。
A．组织中人们的心理状况B．人们的行为在工作中的表现C．人们在工作中的活动D．活动所创造的组织绩效7、在管理方格（managerial grid）理论中，任务型管理是指如下哪种情形？（）A．对人和工作两个维度都非常关注B．更关注人C．对人和工作两个维度都不是特别关注D．更关注工作8、20世纪以前，有两个重要的事件促进了管理研究的发展，其中一个是（）。
A．亚当·斯密出版《国富论》B．泰勒出版《科学管理原理》C．文艺复兴 D．霍桑实验9、当态度之间以及态度与行为之间存在任何不协调或不一致时，我们称之为（）。
A．态度紊乱 B．认知失调C．知觉混乱D．晕轮效应10、罗宾斯（Stephen P.Robbins）概括了管理的四项职能，法约尔（Henri Fayol）则概括了管理的五项职能。
前者与后者相比，有三项职能是相同的，不同的一项是（）。
2020届成都理工大学附属中学高三英语第三次联考试卷及答案解析
2020届成都理工大学附属中学高三英语第三次联考试卷及答案解析第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AIn the age of social distancing, using robots for some health care interactions is a promising way to reduce in-person contact between health care workers and sick patients. However, a key question is how patients will react to a robot entering the room. Researchers from MIT and Brigham and Women’s Hospital recently set out to answer that question.In a study, the team found that a large majority of patients reported that interacting with a health care provider through a video screen fixed on a robot was similar to an in-person interaction with a health care worker.“We’re working on robots that can help provide care to ensure the safety of the patient and the health care workforce. The results of this study give us some confidence that people are ready and willing to join us. In a larger online survey carried out nationwide, we also found that a majority of respondents were open to having robots perform small tasks such as taking a nose swab (拭子).” says Giovanni Traverso, an MIT assistant professor and the senior author of the study.After the COVID-19 pandemic began early last year, Traverso and his colleagues turned their attention toward new strategies to reduce interactions between potentially sick patients and health care workers. To that end, they created a mobile robot that could interact with patients as they waited in the emergency department. The robots were equipped with sensors that allow them to measure vital signs, including skin temperature, breathing rate, and pulse(脉搏) rate. The robots also carried an iPad for remote video communication with a health care provider.The study suggests that it could be worthwhile to develop robots that can perform tasks that currently require a lot of human effort, such as turning a patient over in bed. These days, turning COVID-19 patients onto their stomachs requires several people. Doing Covid-19 tests is another task that takes a lot of time and effort from health care workers, who could be arranged for other tasks if robots could help.1. Why did the researchers from MIT and BWH carry out the studies?A. To shorten the social distance between doctors and patients.B. To figure out the response of patients to robotic doctors.C. To reduce the risk of being infected with coronavirus.D. To ensure the safety of patients during the pandemic.2. What could be learned from the study?A. Robots are not welcomed by patients.B. Robots will soon replace doctors.C. Robots may help to deal with Covid-19 patients.D. Robots can operate on different patients.3. Which of the following is the best title for the text?A. StrengthsAnd Weaknesses In Robot CareB. The Robotic Doctor Will See You NowC. The Robots Speed Up COVID-19 TestingD. The Development Of Robots In HospitalsBI don’t want to talk about being a woman scientistagain. There was a time in my life when people asked constantly for stories about what it’s like to work in a field dominated (controlled) by men. I was never very good at telling those stories because truthfully I never found them interesting. What I do find interesting is the origin of the universe, the shape of space, time and the nature of black holes.At 19, when I began studying astrophysics (天体物理学), it did not bother me in the least to be the only woman in the classroom. But while earning my Ph.D. at MIT and then as a post-doctor doing space research, the issue started to bother me. My every achievement — jobs, research papers, awards — was viewed through the lens (镜片) of gender (性别) politics. So were my failures. Sometimes, when I was pushed into an argument on left brain versus (相对于) right brain, or nature versus nurture (培育), I would instantly fight fiercely on my behalf and all womankind.Then one day a few years ago, out of my mouth came a sentence that would eventually become my reply to any and all provocations (挑衅): I don’t talk about that anymore. It took me 10 years to get back the confidence I had at 19 and to realize that I didn’t want to deal with gender issues. Why should curing sexism be yet another terrible burden on every female scientist? After all, I don’t study sociology or political theory.Today I research and teach at Barnard, a women’s college in New York City. Recently, someone asked me how many of the 45 students in my class were women. You cannot imagine my satisfaction at being able to answer, 45.I know some of my students worry how they will manage their scientific research and a desire for children. And I don’t dismiss those concerns. Still, I don’t tell them “war” stories. Instead, I have given them this: the visual of their physics professor heavily pregnant doing physics experiments. And in turn they have given me the image of45 women driven by a love of science. And that’s a sight worth talking about.4. Why doesn’t the author want to talk about being a woman scientist again?A. She is fed up with the issue of gender discrimination (歧视).B. She feels unhappy working in male-dominated fields.C. She is not good at telling stories of the kind.D. She finds space research more important.5. From Paragraph 2, we can infer that people would attribute (把……归因于) the author’s failures to ________.A. the burden she bears in a male-dominated societyB. her involvement in gender politicsC. her over-confidence as a female astrophysicistD. the very fact that she is a woman6. What did the author constantly fight against while doing her Ph.D. and post-doctoral research?A. Lack of confidence in succeeding in space science.B. Unfair accusations from both inside and outside her circle.C. People’s fixed attitude toward female scientists.D. Widespread misconceptions about nature and nurtured.7. What does the image the author presents to her students suggest?A. Women students needn’t have the concerns of her generation.B. Women can balance a career in science and having a family.C. Women have more barriers on their way to academic success.D. Women now have fewer problems pursuing a science career.CThe health benefits of staying active are already well-known. It can help you manage weight, keep blood sugar levels down and reduce risk factors for heart disease.Now, a new study suggests that regularly playing sports, especially badminton or tennis, is not only healthy but also reduces your risk of death, at any age, by approximately 50%. This is a big scale population study to explore the health benefits of sports in terms of death rate. The study evaluated responses from 80, 306 adults aged 30 and above inEnglandandScotland, who were surveyed about their health, lifestyle and exercise patterns.After adjusting factors such as age, sex, weight, smoking habits, alcohol use, education and other forms of exercise besidesthe named sports, the researchers compared the risk of death among people who took part in asport to those who didn’t. The percentage of reduced risk of death was found to be: 47% for racket（球拍）sports, 28% for swimming and 15% for cycling.In addition to this, the study didn’t find any significant reduction in the risk for sports like running and football. The findings also exposed that over 44% of the participants met the guidelines for the recommended exercise levels to stay fit and healthy, which amounts to 150 minutes of moderate(适度的) physical activity in a week.Does this mean you stop running or playing football and switch to tennis instead? Every kind of sport and physical activity has different physical, social and mental benefits attached to it. The apparent lack of benefits of running and football could result from several variables that were not taken into account.Being active helps you feel happier and live longer. So, the most important step is to take part in any kind of sport that you are likely to enjoy and follow in the long term.8. How is the study conducted?A. By doing comparative experiments.B. By analyzing previous data.C. By evaluating survey information.D. By tracking participants for a long time.9. What does the underlined part “the named sports” refer to?A. Ball sports.B. Racket sports.C. Individual sports.D. Traditional sports.10. What can we infer from paragraph 5?A. Few people will play football.B. Tennis will become more popular.C. The result of this study is wrong.D. The study needs to be further improved.11. What does the author advise people to do?A. Stick to any sport that you like.B. Play badminton and tennis only.C. Stop running and playing football.D. Do any sport according to guidelines.DWhen I was trying to find a place where to spend my December holidays, I met by chance some cheap flights to Iceland. After checking just a few winter pictures of Iceland, I realized that the country, known as the land of fire and ice, during the cold months of the year could offer me experiences I had never had before.For sure you can’t miss the chance to go to Iceland in winter if your traveling wish list includes at least one of the crazy experiences Iceland can offer. Iceland in the North Atlantic Ocean is a paradise (乐园) for all those who want to see the northern lights, experience cold weather conditions and put themselves in geothermal (地热的)baths while the snow is falling on their head.The best way to move around Iceland is with a rental car. Distances are huge and public transport in winter is not really common out of the major towns. As we wanted to be even more convenient we decided to rent a small camper (野营车). Sleeping and cooking in a camper saved us a lot of driving, money and gave us the chance tobe always in the right place at the right time.There were also no locals and in many cases no tourist facilities (设备). For us, as we slept in a camper, it was easier. But for tourists traveling by normal cars it is necessary to check the opening times ofhotels and restaurants as many of them run just from June to September.It is amazing to experience how the weather is changing in Iceland. However, Icelanders prefer to stay inside their houses. They have even no time to complain about the weather in December. All they care about is Christmas. They love to decorate their houses, sing Christmas songs and eat typical Christmas food.12. Why is Iceland famous as the land of fire and ice?A. Because tourists would like to play with fire on the ice.B. Because it is too dry to easily cause fire to happen.C. Because it is hot inside a house and cold outside.D. Because there exist hot springs and freezing ice.13. What did the author think of the rented camper?A. It was not only practical but also economical.B. It was convenient but cost them more money.C. It provided the best chance to see the new country.D. It was much faster than other public transport.14. What does the last paragraph imply?A. The Icelanders prefer to live with their family.B. The joy of Christmas drives the freezing weather away.C. December is the coldest month of the year.D. The Icelanders are always positive and stay outside.15. What does this passage most probably come from?A. A textbookB. A scientific reportC. A travel magazineD. A news report第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
成都理工大学附属中学高中化学选修三第四章《生物大分子》测试卷(含答案解析)
一、选择题1．(0分)[ID：141097]下列方程式不正确的是A．工业制取漂白粉：2Cl2 +2Ca(OH)2 =CaCl2 + Ca(ClO)2 +2H2OB．蔗糖水解：C12H22O11(蔗糖)+H2O催化剂−−−−−→2C6H12O6(葡萄糖)C．Mg(OH)2沉淀中滴加盐酸的离子方程式：Mg(OH)2+2H+=Mg2++2H2O+H2O⇌NH3·H2O+H+D．氯化铵水解的离子方程式：NH+42．(0分)[ID：141093]下列说法正确的是A．实验室制肥皂时，将适量植物油、乙醇和稀硫酸混合，并不断搅拌、加热，直到混合物变稠，即可得到肥皂B．用乙醇制取乙烯时所用温度计的位置与制取蒸馏水时所用温度计的位置不同C．将10滴溴乙烷加入10mL 10%的烧碱溶液中加热片刻后，再滴加2滴2%的硝酸银溶液，以检验水解生成的溴离子D．葡萄糖的银镜反应、乙酸乙酯的制备都需水浴加热3．(0分)[ID：141081]下列有关物质分离或提纯方法正确的是A．用分液的方法分离乙醇和乙酸的混合物B．为除去乙烷中混有的乙烯，将混合气体通入酸性高锰酸钾溶液C．为除去苯中的苯酚，加入浓溴水过滤D．为分离出蛋白质，向鸡蛋清溶液中加入饱和(NH4)2SO4溶液，过滤4．(0分)[ID：141076]化学源于生产生活，下列有关说法正确的是A．石油裂化、石油分馏、石油裂解、石油催化重整都是化学变化B．四千余年前用谷物酿造出酒和醋，酿造过程中只发生取代反应C．用激光笔分别照射蛋清溶液和葡萄糖溶液，能产生光亮“通路”的是蛋清溶液D．某种验钞笔中含有碘酒溶液，遇假钞呈蓝色，其中遇碘变蓝的是葡萄糖5．(0分)[ID：141065]下列属于合金材料的是A．硬铝B．陶瓷C．橡胶D．棉麻6．(0分)[ID：141054]关于生活中的有机物，下列说法不正确的是A．葡萄糖可以发生氧化反应、银镜反应和水解反应B．工业上利用油脂在碱性条件下的水解反应制取肥皂和甘油C．食用植物油的主要成分是高级不饱和脂肪酸甘油酯，是人体的营养物质D．毛、发的主要成分都是蛋白质，蛋白质水解的最终产物是氨基酸7．(0分)[ID：141053]北宋沈括《梦溪笔谈》中记载：“信州铅山有苦泉，流以为涧。
计算机组成原理(期末考卷三套附带答案)
计算机组成原理题型一、填空题（本大题共5小题，每题2分，共10分）1．若［ｘ］原＝xxxxxx ，则［ｘ］补＝（ ） 2． 3． 4． 5．二、单项选择题（本大题共5小题，每题2分，共10分）从下列各题四个备选答案中选出一个正确答案，并将其代号写在题前面的括号内。
（ ）1．能够被计算机硬件直接识别的语言是A. 汇编语言B. 高级语言C. 机器语言D. 应用语言（ ）2． （ ）3． （ ）4． （ ）5．三、计算题（本大题共2小题，每小题5分，共10分）1．用变形补码2 ．四、简答题（本大题共2小题，每小题5分，共10分）1.说明2. 顺序存储器和交叉存储器√五、设计题（本大题共2小题，第一小题10分，第二小题20分，本大题30分）1.试用xxxxx 芯片，构成xxxxx 存储器.2.假设某计算机的数据通道如下图所示，请设计以下指令的微操作序列： 1） ADD Rxx ，Rxx 寄存器的内容相加后存入Rxx 。
2）六、分析题（本大题共2小题，第一小题10分，第二小题20分，本大题30分）1.现有xxxxxxx 个中断源，其优先级由高向低按xxxxxxx 顺序排列。
若中断服务程序的执行时间为xxxx μs ，根据下图所示时间轴给出的中断源请求中断的时刻。
画出CPU 执行程序的轨迹。
地址线存储总线C P U 内部总线D服务C服务B服务A服务0 10 20 30 40 50 60 70 80 90 100 120 130 140 t(μs)B与C请求D请求B请求A请求2．设磁盘组有xx片磁盘，每片有两个记录面，最上最下两个面不用。
存储区域内径xxxx，外径xxx，道密度为xxxx道/cm，内层位密度xxx0位/cm，转速转/分。
问：1)共有多少柱面?2)盘组总存储容量是多少?3)数据传输率多少?4)采用定长数据块记录格式，直接寻址的最小单位是什么?寻址命令中如何表示磁盘地址?本科生期末试卷一一．选择题(每小题1分，共10分)1．计算机系统中的存贮器系统是指______。
2020届成都理工大学附属中学高三英语第三次联考试卷及答案解析
2020届成都理工大学附属中学高三英语第三次联考试卷及答案解析第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AExperts say that if food were a country, it would rank second behind theUSas one of the biggest greenhouse gas polluters. The reason is the rising demand for meat. Animal farming is responsible for 14.5 percent of global methane emissions. While cowsare the worst contributors, pigs, sheep, donkeys and other animals play a part as well.Animal agriculture also causes land to become damaged, water to be polluted and forests to get destroyed. With the world population forecast to rise to 9.8 billion by 2050, things are only looking worse for our already decreasing natural resources. While going vegetarian would help, meat consumption is too deep-rooted in most Western diets to allow for such a sharp, permanent change. That is why experts are advocating substituting some of the beef, chicken, or pork with ordinary insects!Insects, which grow into adults within a matter of months, if not weeks, are ready for consumption much faster than domestic animals. They also require much less room, use less water and food, and produce far less greenhouse gas than animals.Of the 1.1 million insect species worldwide, scientists have identified 1,700 as eatable. Among them are ants, grasshoppers, grubs, and earthworms. Just like animals, each insect has a different taste. Tree worms taste just like pork, and grubs are similar to smoked meat.While eating insects might be a new concept for Western people, over 2 billion people worldwide consume insects as a regular part of their diet. Besides being delicious, insects are high in protein, have very few calories, and are free of the saturated fat found in animal meat. Insects can be prepared in many ways. Creative cooks can use them to cook protein-rich soup, make baked treats, and even fry a few with vegetables. So eat insects--- both your body and Mother Earth will thank you for it!1. Which of the following animals contribute the most to global methane emissions?A. Sheep.B. Donkeys.C. Cows.D. Pigs.2. How is the third paragraph developed?A. By making comparisons.B. By providing examples.C. By listing data.D. By asking questions.3. What can be inferred from the last paragraph?A.Few people eat insects regularly.B. Ordinary insects are high in fat.C. Insects contain various vitamins.D. Saturated fat is harmful to health.BRemember when your mom told you not to eat too many candy bars or sweets because they can cause tooth decay (蛀牙)? However, it turns out that chocolate can be moresalutaryto your teeth than you might expect. Recent studies show that chocolate can effectively fight against tooth decay, as if we need another excuse to eat chocolate.Chocolate offers protection like fluoride, a main ingredient in most household toothpastes. Not only does chocolate protect our teeth, but it can do so very effectively. Studies show that chocolate has compounds that provide strong protection for teeth. One of the compounds in chocolate, CBH, is shown to protect even more effectively than fluoride.Tooth decay happens when bacteria work to turn sugar into acids in our mouth. This is why eating foods with high sugar content can lead to more tooth decay. The compounds in chocolate, however, are anti-bacteria and can fight against bacteria in your mouth. The CBH compound in particular also works to strengthen tooth enamel (牙釉质), andprotects against tooth decay.Does this mean you can cat as much chocolate as you want without worrying about your teeth? It depends on the types of chocolate that you like. The protective effect of chocolate is most effective when you chew on cocoa beans. Of course, this option is not very appealing to; most people. A more tasty option is to choose dark chocolate with little sugar content, ideally no more than 6 to 8 grams per serving. For other types of chocolate with higher sugar content, the effect will be lessened. However, because of the protective compounds, it is still better for your teeth than other sweets and desserts containing the same amount of sugar.4. The word “salutary” in paragraph 1 means?A. Beneficial.B. Harmful.C. Familiar.D. Useless.5. What can we know about the compound CBH in chocolate?A. It can help chocolate cure tooth decay.B. It can effectively stop teeth from decaying.C. It may protect teeth better than toothpastes do.D. It may soon replace most household toothpastes.6. How does chocolate fight tooth decay?A. By breaking down acids.B. By building up compounds.C. By fixing up tooth enamel.D. By fighting against bacteria.7. What's the main idea of the text?A. Chocolate plays the role of toothpaste.B. Chocolate protects against tooth decay.C. Chocolate is the best choice for teeth protection.D. Chocolate is healthier to teeth than other sweets.CDisease-carrying mosquitoes can spread diseases without affecting themselves. Nearly 700 million people get a mosquito-borne illness each year, which results in over one million deaths. Humans experience continuous pressures from disease-carrying mosquitoes in many parts of the world, so we have to find ways to fight against those insects because they keep getting scarier.Even though DEET remains the most commonly used, and most powerful, mosquito repellent ever developed, scientists are actively pursuing effective products based entirely on plant oils. While DEET is an effective contact repellent, many people dislike the oily feel and smell on their skin, and sometimes some people are sensitive to it. Consumers are always interested in alternatives to DEET and other synthetic repellents, so there are numerous natural repellents on the market.In his lab atIowaStateUniversity, Dr. Joel Coats and his team have successfully tested these repellents against three species of dangerous mosquitoes. The first group of the new repellents act through the air. These chemicals have a vapor action that provides protection, and they are called “spatial” repellents, since they act through space. These are potentially most useful in backyards, parks, and houses. The other group are the classic ones that stop insects from standing on a treated surface, such as human skin, clothing or tents; collaborators at the USDA-ARS and BioGents have conducted testing with humans to confirm the effectiveness and identify the very best ones.The new repellents were designed and made from the natural materials in plant essential oils. They maintain many of the advantages of the natural repellents: They are fully biodegradable, with no ecological concerns or environmental wastes, and generally considered safe like the thousands of types of plant essential oils used in the flavor and perfume industries. However, thorough testing will be conducted to determine if they are truly non-poisonous because there is still no enough evidence.8. What does the author mainly want to show in paragraph 1?A. The way mosquitoes spread disease.B. The high death rate of mosquito-borne illness.C. The difficulty of fighting disease-carrying mosquitoes.D. The urgency of finding tools to fight against mosquitoes.9. What is a disadvantage of DEET?A. It won’t be effective for long.B. It can’t be applied universally.C. It causes discomfort to the users.D. It greatly harms people’s health.10. What can we learn about the second group of the new repellents?A. They can kill mosquitoes indirectly.B. They are mainly used in the open air.C. They are more effective on human skin.D. They can prevent mosquitoes from contacting users.11. What’s the author’s attitude to the new repellents?A. Subjective.B. Objective.C. Doubtful.D. Disapproving.DAs I work in theLarkwhistle Garden in Dyer's Bay, Ontario, I take my time and the garden is teaching me about working with the earth. I recognize that there will be both successes and failures and there are many variables(变量)that affect them both.The quality of the seeds planted has a bearing on how the plants will grow. The weather can be too hot, too cold, or exactly right, and usually varies between all three. Weeds seem to grow in the garden and need to be taken care of, pulled, and removed to ensure they do not eat into the fruits, vegetables, and flowers we have so lovingly planted.I take time to stand back and rest, and to observe the plants and how they are growing. Each plant is unique and develops in the way that is best for them. Some have large broad leaves to shadow their fruit from the severe rays of the sun, while other plants are more open, their fruit needing the light to grow and ripen.Getting my hands dirty, feeling the sweat on my forehead, and the strength and flexibility of my body as I dig, bend and work under the warm summer sun, reminds me I am alive in ways I would not have remembered sitting on the couch.It is attractive to move things around, to transplant, and to disturb the natural order of how plants grow. The garden teaches me that it is important to know when to disturb things and when to let them be. The garden's life cycle follows a pattern that is repeated according to laws of nature, birth, growth, and then dies and it teaches us to accept this fact.12. How many variables may affect the growth of plants in the garden?A. Two.B. Three.C. Four.D. Five.13. What can we learn about the author?A. He feels exhausted while gardening.B. He enjoys life from working practice.C. He takes pleasure in harvesting fruits.D. He dreams away his time in the garden.14. How is the garden tended by the author?A. Its rank grass is got rid of.B. Its plants are left to grow freely.C. Its temperature is controlled properly.D. Its plants with large broad leaves are cut off.15. What fact does the author learn from gardening?A. Life takes its course.B. Hard work benefits health.C. Time is short and precious.D. Gardening brings good harvest.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
《物理化学》2012-2013学年2学期考试卷答案
成都理工大学2012—2013学年 第二学期《物理化学》（第二套）考试试卷答案一、选择题（1×11分=11分）（ A ）1、某液体在恒温恒压下蒸发为蒸气，过程的△H ：A ．>0 B. =0 C. <0 D. 无法确定（ B ）2、在绝热密闭刚性容器中发生某一化学反应，系统终态温度升高，压力增大，此过程的△U ：A ．>0 B. =0 C. <0 D. 无法确定（B ）3、同一温度与相同压力下，同一气体物质的.Cp m 与.Cr m 之间的关系为：A ．.p m C <.v m C B. .p m C >.v m C C. .p m C =.v m C D. 难以比较（A ）4、理想气体在可逆绝热膨胀过程中：A ．熵不变B. 热力能增加C.熵增大 D. 温度不变（D ）5、恒温恒压下，由两种纯液体混合形成理想溶液时，A．0mix V∆<B. 0mix H ∆<C. 0mix S ∆<D. 0mix G ∆<（ A ）6、理想气体下列关系中不正确的是：A ．()0V U T ∂=∂ B. ()0T U V ∂=∂ C. ()0T H P ∂=∂ D. ()0T UP∂=∂ （ D ）7、由水（1）与乙醇（2）组成的二组分溶液，下列各偏导数中不是乙得 分醇化学势的有：A ．1,,2()S P n H n ∂∂ B. 1,,2()T P n G n ∂∂ C. 1,,2()T V n A n ∂∂ D. 1,,2()T P n U n ∂∂ （ A ）8、在某一温度下，由纯A 与纯B 形成理想态混合物。
已知**AB P P <，当气液两相平衡时，气相组成B y 与该相组成B x 关系为：A ．B y >B x B. B y <B x C. B y =B x D. 无法判断（ C ）9、将固体42()NH HCO s 放入真空容器中，恒温到400k ，43NH HCO 按下式分解并达平衡：43()NH HCO s 322()()NH H O g CO g +（g ）+，体系的组分数C 和自由度F 为：A ．C=2,F=1 B. C=2,F=2 C. C=1,F=0 D. C=3,F=2（ C ）10、某连串反应A →B →C ，实验测得B 非常活泼，当反应稳定后，则B 的生成速率与B 的消耗速率关系为：A ．> B. < C. = D. 无法确定（ D ）11、对行反应A 11k k - B ；当温度一定时由A 开始，下列说法中是不对的：A ．开始时A 的消耗速率最快 B. 反应的净速率是正逆二向反应速率之差 C. 11/k k -的值是恒定的D. 平衡时正逆二向速率常数相等二、填空题（20×0.5=10分）1、封闭系统由一始态出发，经历一循环过程，过程的U ∆ =0 ；H ∆得 分=0 ；Q 与W 的关系是 Q=-W ，但Q 与W 的具体数值 无法确定 ，因为 不知具体途径 。
2014专升本基础试题(含答案)
成都理工大学2014年专升本《大学计算机基础》考试试卷 考试时间 90分钟 考生必读：试题答案必须在机读卡上用2B 铅笔按对应题号准确、清楚涂写。
答在试卷上无效。
一、 单项选择题（每小题1分，共80分） 下列各题A 、B 、C 、D 四个选项中，只有一个选项是正确的，请将正确选项涂写在答题卡相应位置上。
1. 一个完整的计算机系统包括________ (A)运算器、存储器和控制器 (B)计算机和它的外围设备 (C)系统软件和应用软件 (D)硬件系统和软件系统 2. 微型计算机中的CPU 集成了_________ (A)内存储器和控制器 (B)内存储器和运算器 (C)控制器和运算器 (D)内存储器、控制器和运算器 3. 按冯·诺依曼的观点，计算机由五大部件组成，它们是________ (A)CPU 、控制器、存储器、输入/输出设备 (B)控制器、运算器、存储器、输入/输出设备 (C)CPU 、运算器、主存储器、输入/输出设备 (D)CPU 、控制器、运算器、主存储器、输入/输出设备 4. 既是输入设备又是输出设备的是________ (A)磁盘 (B)键盘 (C)显示器 (D)鼠标器 5. 计算机软件一般包括系统软件和________ (A)源程序 (B)应用软件 (C)管理软件 (D)科学计算 6. _________中的两个软件都属于系统软件 (A)Windows 和Office (B)Windows 和Unix (C)Unix 和Office (D)Office 和Linux 7. 下面是关于解释程序和编译程序的论述，其中正确的一条是________ (A)编译程序和解释程序均能产生目标程序 (B)编译程序和解释程序均不能产生目标程序 (C)编译程序能产生目标程序而解释程序则不能 (D)编译程序不能产生目标程序而解释程序能8. ________是控制和管理计算机硬件和软件资源、合理地组织计算机工作流程、方便用户使用的程序集合(A)监控程序 (B)操作系统 (C)编译系统 (D)应用系统9. 在计算机领域中通常用MIPS 来描述________(A)计算机的运算速度 (B)计算机的可靠性班 级 学 号 姓 名 密封装订线 密封装订线 密封装订线(C)计算机的可运行性(D)计算机的可扩充性10. CAD 是计算机主要应用领域，它的含义是_______(A)计算机辅助教育 (B)计算机辅助测试(C)计算机辅助设计 (D)计算机辅助管理11. 计算机中的最小数据单位是________(A)ASCII码字符 (B)字节 (C)字符串(D)比特 (二进制位)12. “64位微机”中的64位指的是________(A)微机型号 (B)字长 (C)内存容量 (D)存储单位13. 微型计算机的内存储器比外部存储器_________(A)存储容量大 (B)存储可靠性高(C)读写速度快 (D)价格便宜14. 在微机的性能指标中，用户可用的内存容量通常是指________(A)RAM的容量 (B)ROM的容量(C)RAM和ROM的容量之和 (D)CD-ROM的容量之和15. 存储器分为内存储器和外存储器两类，_________(A)它们中的数据均可被CPU直接调用(B)其中只有外存储器中的数据可被CPU直接调用(C)它们中的数据均不能被CPU直接调用(D)其中只有内存储器中的数据可被CPU直接调用16. 配置高速缓冲存储器(Cache)是为了解决________(A)内存与辅助存储器之间速度不匹配问题(B)CPU与辅助存储器之间速度不匹配问题(C)CPU与内存储器之间速度不匹配问题(D)主机与外设之间速度不匹配问题17. 若微机在工作过程中突然断电，则计算机________中的信息全部丢失(A)ROM和RAM中的信息 (B)ROM中的信息(C)RAM中的信息 (D)硬盘中的信息18. 存储器容量1G、1K、1M分别表示2的________次方字节(A)10、20、30 (B)30、10、20 (C)20、30、10 (D)30、20、1019. 在计算机内部，所有数据都是以________编码形式表示的(A)条形码 (B)拼音码 (C)汉字码(D)二进制20. 在ASCII码表中，按照ASCII码值从小到大排列顺序是________(A)数字、英文大写字母、英文小写字母(B)数字、英文小写字母、英文大写字母(C)英文大写字母、英文小写字母、数字(D)英文小写字母、英文大写字母、数字21. 存储1000个32×32点阵的汉字字模信息需要________KB(A)125 (B)128 (C)126 (D)12722. 已知字符K的ASCII码的十六进制数是4B，则ASCII码的二进制数是1001000对应的字符应为________(A)G (B)H (C)I (D)J23. 将二进制数1111011转换为八进制数是________(A)153 (B)171 (C)173 (D)37124. 与十进制873相等的十六进制数是_________(A)359 (B)2D9 (C)3F9 (D)36925. 计算机病毒可使整个计算机瘫痪，危害极大。
成都理工大学中国近现代史纲要期末考试试卷(含答案)--万学职业精英社成都理工大学分社分社
C．对资本主义工商业改造
D．发展重工业
20．建国后，对国民经济进行三年调整的时期里，具有关键性作用的是（ ）
的召开。
A．七千人大会
B．庐山会议
C．中共八大
D．南宁会议和成都会议
得分 二、多项选择题（请根据题意，选出一个或两个以上的正确答案，多 选少选均不得分。本大题共 10 小题，每小题 2 分，共 20 分)
表示，本大题共 14 小题，每小题 1 分，共 14 分）
题号 31 32 33 34 35 36 37 38 39 40 41 42 43 44 答案
得分
四、简答题（本大题共 4 小题，每小题 8 分，共 32 分）
45、
6
万学职业精英社成都理工大学分社 46、 47、
7
万学职业精英社成都理工大学分社 48、
务。（ ） 33．全民族抗战以来中国军队的第一次重大胜利是台儿庄大捷。（ ） 34．抗战进入相持阶段后，中国人民在华北主动发起并给日本侵略者沉重打击的
一次军事行动是百团大战。（ ） 35．帝国主义对中国的侵略由商品输出为主转为以资本输出为主的标志是《辛丑
条约》的签订。（ ） 36．西安事变的和平解决标志着抗日民族统一战线正式形成。（ ） 37．全国抗战初期，国共合作最典型的战役是太原会战。（ ） 38．新文化运动的倡导者因批判孔学而否定中国传统文化。（ ）
D．安源路矿工会
7．第一次国共合作正式形成的标志是（ ）
A．新三民主义的提出
B．中共三大的召开
C．三大政策的提出
D．国民党一大的召开
8．开始了从大革命的失败到土地革命战争的兴起转折的是（ ）
1
万学职业精英社成都理工大学分社
A．南昌起义
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成都理工大学20072008学年第二学期
《电子系统设计》考试试卷（A卷）
大题一二三四五总分
得分
一、填空(20分，每空1分)
1、请列出至少三个电容器的用途：、、等。
2、根据滤波器的选频作用，滤波器可分为滤波器、滤波器、滤
波器、滤波器等四种。
3、EEPROM存储器掉电后，其内部数据将。
4、MCS51单片机的CPU是位。
5、静态存储器比动态存储器的存取速度。
6、并行接口与串行接口相比，的传送速率高。
7、选取DAC，首先应该考虑的是DAC的和。当然也需要
考虑其他要求，如电源、基准电压、输入缓冲、输出模式、工作控制、温度稳定性、功耗、
封装和成本等。
8、锁相环由、和三部分组成，环
路锁定时输出信号的频率与输入信号的频率，而两者的相位差为。
9、在以AT89C51单片机为核心的系统设计中，通常在其I/O口上加上拉电阻，该上拉电阻
阻值一般选为__。
10、一个12选1的数据选择器，其地址输入端有个。
二、选择题(10分，每题2分)
1、MCS51读写数据通过并行口传送。
A.P0B.P1C.P2D.P3
2、如要将一个最大幅度为5.1V的模拟信号转换为数字信号，要求输入每变化20mV，输出
信号的最低位（LSB）发生变化，应选用位ADC。
A6；B8；C10；D12
3、与TTL门电路相比,CMOS门电路
A．制造工艺更复杂B．成品率低
C．功耗较小D．不能使用高于5V的电源
4、存储容量为8K×8位的ROM存储器，其地址线为条。
A6；B8；C12；D13
5、一个八位DAC的最小电压增量为0.01V，当输入代码为00010010时，输出电压
为V。
A0.09；B0.18；C0.27；D0.36
三、简答题(20分，每题5分)
1、选择电阻器、电容器时需要考虑的主要技术指标各有哪些？
2、简述消除键盘抖动的硬件、软件方法各一种。
3、简述图1中二极管D1～D4的作用。
4、简述继电器的工作原理，并简述为什么要在直流继电器线圈两端并联一个二极管？
四、分析题(20分，每题10分)
1、试分析图2所示桥式整流电路中的二极管D2或D4断开时负载电压的波形。如果D2或
D4接反，后果如何？
2、某数控放大器增益电路如图3所示。请分析其工作原理，并求出放大器的增益。
五、设计题（30分，每题10分）
1、某微处理器为低电平复位有效，请设计其上电复位和按键复位电路（要求上电复位时间
常数不小于10ms），并简要说明。
2、在设计键盘接口时，主要需要解决以下几个问题：检测是否有按键按下；判别是哪一个
按键按下；按键抖动消除以及有多个按键按下的处理等。某中断方式的行列式键盘接口如图
4所示，画出按键中断检测的流程图。假如图中按键“2”已按下，请简述如何判断闭合键
键号的。
3、设计AT89C51单片机通过P1口P1.0和P1.1输出二个开关量控制LED灯的电路，使二个
LED灯轮流显示，间隔大约1s，编写相应的程序。