四川农业大学2018应用写作平时作业答案
应用写作作业及参考答案
应用写作作业及参考答案作业1：论述科技对现代社会的影响科技在现代社会中扮演着重要的角色，它对我们的生活和工作产生了深远的影响。
以下是一些科技对现代社会影响的主要方面：1. 提高生活质量科技的发展为我们带来了许多便利和舒适。
例如，我们可以通过智能手机轻松进行通讯、获取信息和购物。
智能家居技术使得我们可以通过手机控制家中的各种设备，提高居家的舒适度。
此外，医疗技术的发展也使得许多疾病变得可以治愈，延长了人们的寿命。
2. 推动经济发展科技的进步对经济产生了巨大的推动作用。
例如，互联网的普及和电子商务的兴起使得商业活动更加便捷和高效。
人们可以在线购买商品和服务，同时也可以通过网络开展跨国贸易。
此外，新兴科技领域，如人工智能和大数据分析，为企业提供了更好的决策支持和市场洞察，促进了创新和竞争力。
3. 改变工作方式科技的快速发展改变了人们的工作方式。
传统的办公室工作逐渐被远程办公、灵活工作时间和虚拟团队取代。
云计算技术使得人们可以随时随地访问文件和应用程序，提高了工作的效率和灵活性。
机器人技术的应用也使得一些重复性工作可以被自动化，让人们专注于更有创造性和复杂的任务。
4. 影响社会交流与互动科技对社会交流与互动方式产生了深远的影响。
社交媒体的兴起让人们可以随时分享自己的生活和观点，扩大了交流的范围和渠道。
同时，虚拟现实技术也提供了全新的沟通和互动体验。
然而，科技的发展也引发了一些负面影响，如信息泛滥和网络犯罪等问题。
综上所述，科技对现代社会产生了广泛而深远的影响，无论是生活、工作还是社交。
尽管带来了许多便利和机遇，但我们也应该关注并应对科技发展所带来的挑战和问题。
参考答案简介： This essay discusses the impact of technology on modern society. It highlights the improvements in quality of life, economic development, changes in work patterns, and alterations in social interactions. It also mentions both positive and negative aspects of technological advancements.。
应用写作考试试题2018
应用写作考试试题2018一、选择题（每题2分，共10分）1. 在商务信函中，以下哪项不是结束语的常用表达？A. 谢谢您的考虑B. 期待您的回复C. 此致敬礼D. 祝好2. 以下哪个选项是正式报告中不恰当的开头？A. 尊敬的领导B. 亲爱的同事们C. 敬爱的评审团D. 各位与会者3. 在撰写电子邮件时，以下哪项不是邮件主题行应该包含的？A. 发件人的姓名B. 邮件的主要内容C. 紧急程度D. 期望的回复时间4. 以下哪个短语最适合用作正式通知的开头？A. 你好B. 尊敬的接收者C. 嘿，大家好D. 亲爱的朋友们5. 在撰写简历时，以下哪项信息不是必须包含的？A. 个人联系信息B. 教育背景C. 详细的个人爱好D. 工作经验二、简答题（每题5分，共20分）1. 描述在撰写商务提案时应该遵循的三个主要原则。
2. 解释为什么在正式的商务沟通中使用清晰、简洁的语言是重要的。
3. 列出在撰写个人求职信时应该包括的五个关键点。
4. 阐述在撰写会议纪要时，应该如何确保信息的准确性和完整性。
三、写作题（共70分）1. 根据以下情境撰写一封商务邀请函。
（20分）情境：你是一家公司的人力资源经理，需要邀请一位行业内的专家在下周的公司年会上就“未来工作趋势”进行主题演讲。
请撰写一封邀请函，包括演讲的主题、时间、地点以及演讲的重要性。
2. 撰写一份会议纪要。
（25分）情境：公司管理层刚刚结束了一次关于新产品开发策略的会议。
会议中讨论了新产品的特点、目标市场、预期成本和上市时间。
请根据这些信息撰写一份会议纪要，并确保包含所有关键决策和后续行动计划。
3. 根据以下情境撰写一封正式的投诉信。
（25分）情境：你最近购买了一款新的智能手机，但是使用过程中发现了许多问题，包括电池寿命短、应用程序经常崩溃等。
请写一封投诉信给制造商，详细说明遇到的问题，并要求解决方案。
注：请在答题纸上标明题号，确保字迹清晰、条理分明。
祝考试顺利！[考试结束]。
川农《英语Ⅰ》18年12月作业考核满分答案
四川农业大学2018年秋季考核标准答案¡¶Ó¢Óï¢ñ¡·18Äê12ÔÂ×÷Òµ¿¼ºËIt was his rudeness in the interview_____probably lost him the jod.A.which.B.since.C.that.D.what.ÕýÈ·´ð°¸:CYou may depend on_____that he will turn up in time.A.it.B.me.C.which.D.them.ÕýÈ·´ð°¸:AIt was lack of money, not of effort,_____defeated their plan.A.which.B.as.C.that.D.what.ÕýÈ·´ð°¸:CAn unexpected accident resulted_____ Bill¡¯s death.A.of.B.in.C.from.D.to.ÕýÈ·´ð°¸:BEven the doctor couldn¡¯t ______________ Tom to give up smoking.A.prepareB.persuadeC.promiseD.prayÕýÈ·´ð°¸:BPlease let me know_____he comes.A.for a moment.B.in a moment.C.the moment.D.at the moment.ÕýÈ·´ð°¸:CHis sitting room is lined with books,_____he has ever read.A.none of which.B.of which.C.none of.D.none.ÕýÈ·´ð°¸:A_____ come and join us.A.DoB.WillC.MayD.NotÕýÈ·´ð°¸:AIt was_____back home after the test.A.not until midnight did he go.B.until midnight that he didn¡¯t go.C.not until midnight that he went.D.until midnight when he didn¡¯t go.ÕýÈ·´ð°¸:CEveryone knows that_____is dangerous to play with fire, but_____is difficult is to prevent children from playing with fire.A.it, it.B.what, what.C.it, what.D.what, it.ÕýÈ·´ð°¸:CThe salesman_____the new medicine to show customers how well it works.A.tried over.B.tried on.C.tried out.D.tried off.ÕýÈ·´ð°¸:COne must live in the country for many years in order to_____citizenship.A.appeal to.B.accept.C.approve of.D.apply for.ÕýÈ·´ð°¸:DHow beautifully she sings! I have never heard_____voice.A.a better.B.a best.C.the better.D.the best.ÕýÈ·´ð°¸:AThe teacher told Bob that if he started working hard right now, he still ___________ of passing the final exam.A.stood chanceB.held chanceC.stood by chanceD.stood a chanceÕýÈ·´ð°¸:DSomeone is at the door. _____must be Mr. Black.A.He.B.It.C.This.D.That.AÕýÈ·´ð°¸:AWhat do you think of Mr. Yang¡¯s proposal that we_____for an English evening?A.will put on a day.B.put on a day.C.are putting on a day.D.had better put on a day.ÕýÈ·´ð°¸:BIt was just in the room_____he was born_____he die##A.where, which.B.that, that.C.where, that.D.which, that.CÕýÈ·´ð°¸:BI was paid last week, but I can¡¯t remember the exact_____of money.A.number.B.quality.C.amount.D.altitude.ÕýÈ·´ð°¸:C¡ªExcuse me, I want to have my TV fixed, but I can¡¯t find a repair shop.¡ªI know_____nearby. Come on, I¡¯ll show you.A.one.B.it.C.some.D.that.ÕýÈ·´ð°¸:AThere is not much time left; so I¡¯ll tell you about it_____.A.in short.B.in detail.C.in brief.D.in all.ÕýÈ·´ð°¸:C_____that caused him to serve dinner two hours later than usual.A.It was we being late.B.It was our being late.C.It was we were too late.D.It was because we were late.ÕýÈ·´ð°¸:BHardly_____his work when the telephone rang.A.he finishedB.he had finishedC.did he finish.D.had he finish.ÕýÈ·´ð°¸:DWould you please help me to _______ up the present for the old gentleman?A.wrapB.bindC.coverD.sendÕýÈ·´ð°¸:AFor miles around us there was nothing but a desert, without a single plant_____.A.on earth.B.at a distance.C.in sight.D.in place.ÕýÈ·´ð°¸:CYes,_____is difficult to find a job nowadays, but_____is more difficult is try to find such a job with a high salary but few things to do.A.it, it.B.what, what.C.it, what.D.what, it.CÕýÈ·´ð°¸:CTom has three_____.A.brother-in-lawB.brothers-in-lawC.brothers-in-lawsD.brother-in-law¡¯sÕýÈ·´ð°¸:B¡ªHow was_____they discovered the entrance to the underground palace?¡ªTotally by chance.A.it that.B.he that.C.it when.D.he which.ÕýÈ·´ð°¸:BThe doctor listened carefully_____he might discover exactly what the patient neede##A.so as that.B.in case.C.providing.D.in order that.ÕýÈ·´ð°¸:DThe box is _____ heavy for the girl _____ carry.A.too, toB.to, tooC.so, thatD.no, toÕýÈ·´ð°¸:AYou can improve your writing by keeping a_____.A.diary.B.dairy.C.dictation.D.calendar.ÕýÈ·´ð°¸:AWhen I begin to look back on all friends whom I have had, I quickly came to the conclusion that Jerry was the most important and had the greatest effect upon my life. His family moved to my block when I was only 10. Jerry was 15 at the time, but the fact that he was so much older than me seemed to make no difference to him. I was very glad that he liked me. We took long walks together, on which he would tell me stories he had heard form TV and radio programs.But as months went by, a change came into our friendship. Jerry almost stopped coming by the house, and every time I went to his house or telephoned, he put me off with some excuses such as Im studying now or Ive got some jobs to do for Mum. When we passed on the street, he would still give me a warm smile and friendly wave with a Hi, kid, but he would hardly ever stop to talk. Finally I realized that he was no longer interested in me and that his taste had changed.I noticed him with a girl once in a while and several times saw him going out in his familys car on a Friday or Saturday night. I simply couldnt understand what was so great about girls and parties. But I was hurt when he finally made me know that our friendship was at an end. Of course he didnt really mean to hurt me, but it was a long time before I realized that it was an age problem that caused the break. There were a world of differences between the ideas and interests of a 17-year-old and a 12-year-old. Now that Im over sixteen myself, I realized this, and the hurt I got then has become happy memories of the good times we were once together. I wonder if millions of other boys and girls have had a similar experience.ÕýÈ·´ð°¸:749c7152-9a60-4cee-8a33-1a80304900c5&&*1|ade5b99d-f723-4218-b931-e138b6 a81fbe&&*2|d9ae32c5-6de2-4049-942d-93e70ffce7ab&&*3|0ce0fe99-f6b3-4696-b442-f1f3 3a891d5f&&*1|57ddf02a-b1bc-435b-8a73-89b132df4592&&*0|One day in 1965, when I was a library worker at school, a teacher came to me. Shehad a student who finished his work before all the others and needed something more difficult for him to do. Could you help me in the library? she asked. I said, Send him along.Soon, a golden-haired boy appeared. Do you have a job for me? he asked.I told him about a system for sorting books. He picked up the idea immediately. Then I showed him some cards for some unreturned books that I thought had been returned but not recorded. Maybe some books were put on wrong places. He said, Is it a kind of a detective£¨Õì̽£©job? I answered yes, and then began his work.He had found three books with wrong cards by the time his teacher opened the door and said, Time for rest! he argued for finishing the finding job, but the teacher won. The next morning, he arrived early, I want to finish these books, he said. At the end of the day, when he asked to work with me more often, it was easy for me to say yes.After a few weeks I found a note on my desk, inviting me to dinner at the boys home. At the end of a pleasant evening, his mother declared that the family would be moving to another school. Her sons first concern, she said, was leaving the library. Who will find the lost books? he asked. When the time came, it was hard to say goodbye. Though at the beginning he had seemed an ordinary boy, his strong feeling of interest had made him different. Do you know who he is? This boy became a great man of the Information Age: Bill Gates.ÕýÈ·´ð°¸:6c776b15-6749-4c3a-9084-d8b04540a3b3&&*2|c4d27760-3b8f-4989-81ed-7da262 69d5f3&&*1|9a94c53c-d2c1-48ef-8a3f-80d78a279620&&*0|9674376d-72b4-40e9-9727-19cf5e72af4a&&*3|83840256-a6d6-43cc-910d-ca562803a6a3&&*2|。
四川农业大学平时作业的答案精编版
四川农业大学平时作业的答案文件编码（008-TTIG-UTITD-GKBTT-PUUTI-WYTUI-8256）《建筑测量》平时作业一、简答题（每题25分，总分100分）1、简述测量工作中用水平面代替水准面的限度。
答：当测区范围很小时，可以将大地水准面看成水平面，而不影响测量和制图。
其限度为：1、在半径为10km的测区范围内进行距离测量时，可以用水平面面代替水准面，不考虑地球曲率对距离的影响；2、地球曲率对高程测量的影响很大。
在高程测量中，即使在较短的距离内，也应考虑地球曲率对高程的影响。
实际测量中，应该考虑通过加以改正计算或采用正确的观测方法，消减地球曲率对高程测量的影响。
2、什么叫水平角在同一竖直面内，由一点至两目标的方向线间的水平角是多少度为什么答：（1）空间相交的两条直线在水平面上的投影所构成的夹角称为水平角，用表示，其数据为0°～360°。
（2）若在同一竖直面内，由一点至两目标的方向线间的水平角值为0°。
因为在同一竖直面内，由一点至两目标的方向线在水平面上的投影是重合的，故其形成的水平角为0°。
）3、产生测量误差的原因是什么答：1）仪器的原因。
观测工作中所使用的仪器，由于制造和校正不可能十分完善，受其一定精度的限制，使其观测结果的精确程度也受到一定限制。
（2）人的原因。
在观测过程中，由于观测者的感觉器官鉴别能力的限制，如人的眼睛最小辨别的距离为0.1mm，所以，在仪器的对中、整平、瞄准、读数等工作环节时都会产生一定的误差。
（3）外界条件的原因。
观测是在一定的外界自然条件下进行的，如温度、亮度、湿度、风力和大气折光等因素的变化，也会使测量结果产生误差。
4、平面控制测量通常有哪些方法各有什么特点答：平面控制测量的方法有三角测量法(含边角测量与交会定点)、导线测量法与GPS测量法。
三角测量法：需要观测水平角，不需要测量边长或只需要测量少量的起算边长，光电测距仪没有出现以前普遍使用；每个点观测的方向数比较多，对通视要求高，所以，三角点通常选择在高山上，每个点都需要建立三角觇标，测量人员需要爬山，外业工作比较艰苦。
2018年电大应用写作期末考试试题及答案
2018年电大应用写作期末考试试题及答案一﹑填空题：1、主旨﹑材料﹑结构﹑语言是一切文章的构成要素.2、序论﹑本论和结论三个部分前后相续﹑紧密衔接,是学术论文常见的结构程序.3、目的明确、格式规范、用语得体是公关文书所应当具备的几个最为突出的特点。
4、发文机关名称﹑发文事由和公文种类是构成公文标题的三个基本要素A5、按其内容的不同,可将广告标题分为直接标题和间接标题两种6、按其内容和功用的不同,可将常用的通知分为以下几种:(1)批示性通知; (2)指示性通知(3)告知性通知(4)任免性通知.7、按其具体用途和内容的不同,可将通报分为三类: (1)表彰性通报(2)批评性通报(3)情况性通报.8、按其内容和功用的不同,可将常见的会议纪要分为三类: (1)指示性会议纪要;(2)通报性会议纪要; (3)消息性会议纪要9、按其内容的不同,可将经济消息分为以下几类: (1)经济动态消息; (2)经济综合消息; (3)经济典型消息; (4)经济述评消息.10、按照分析的目的和涉及的范围的不同,经济活动分析报告大致可分为以下几种: (1)全面分析报告; (2)专题分析报告; (3)简要分析报告; (4)财务分析报告.11、按其形式的不同,可以把学术论文中的注释分为四种: (1)夹注; (2)脚注; (3)章节注; (4)尾注.12、按行文方向的不同划分，可将函分为去函和复函两种；按内容的不同划分，可将函分为商洽性函、询问性函、答复性函和请求性函等几种。
13、按其自身特点的不同,可将文摘分为以下几类: (1)指示性文摘; (2)报道性文摘; (3)报道/指示性文摘.14、按照综述所描述的对象的不同,可以把常用的综述分为三种: (1)会议综述;(2)讨论综述; (3)研究综述.15、接照使用场合的内容的不同，可将慰问信分为两类，一类是表示安慰的，一类是表示问候的。
16、按照请示的内容和请示的目的的不同，可将请示分为请示的指示请示和请求的批准请示17、按其用途的不同，可以将书信分为两大类：一类是专用书信，一类是一般书信。
四川农业大学英语平时作业
在线考试::试卷作答课程代码进入考试时间考生身份总大题数当前页信息页数信息剩余时间36100411月05日11:45W3203122311131 [查看]第1大题的第1页共1页/第1页119分50秒英语Ⅰ平时作业一、单选题(共20题，100分)1、Hsiao Li found a ______ of keys in the corridor, which turned out to bemine.bunchseriesfewpair2、Don't talk about her son's behavior at school. It's a(n)________ subjectto her.awkwardembarrassingnervousdisgraced3、I'd like to ________ the holiday arrangements once more before we leavetomorrow.go forgo overgo roundgo about4、Tom has got a decent ______ in a chemical factory.jobemploymentworkprofession5、As the clouds drifted away, an even higher peak became _________ to theclimbers. in sightvisibleobviousapparent6、When you read a book in a hurry, you can _______ some less importantdetails. leaveskidskipskin7、Without the _______ of TV, children might spend more time reading andwriting.watchingconcentrationshowdistraction8、China has great _______ to become an economic power in not too long a time.chanceconcernpotentialopportunity9、The little girl woke up screaming because she had had a_______.daydreamnightmarefantasysweet dream10、He talked so much during the chess match that he _________ the game.distracted me fromkept me fromprevented me fromstopped me from11、He used to have a _____ of stamp-collecting, but he has given itup.habithobbycustomlike12、As excellent work leads to promotions and wage increases, the workers have greater ______ to produce.motiveincentiveintentionenergy13、That small country has ______ independence.orderedexclaimedperformeddeclared14、Would you please help me to _______ up the present for the old gentleman?wrapbindcoversend15、On our way to New York, we _______ the town of Albany.got over came throughwent overgot through16、She talked to him for a long time and _____ him from doing that dangerous job.persuadeddissuadedovercameconquered17、The old lady showed her ______ by giving the beggar several。
应用文写作期末答案2018
应用文写作期末答案一、单选题如果题序不同，请翻至本文档末尾1下面的批复开头最为恰当的是（）A、你单位×年×月×日《关于××问题的请示》已收悉，经研究批复如下B、你单位×年×月×日的请示已收悉，经研究，批复如下C、你单位《关于××问题的请示》已收悉，经研究，批复如下D、你单位的请示已收悉，经研究，批复如下正确答案：A2某高校校长办公室准备把老师在校外兼职情况给教育部作一汇报，应使用的文种是（）A、通知B、去函C、请示D、报告正确答案：D3公文的规范性标题指的是（）A、三要素标题B、只写文种名称的标题C、两要素标题D、新式标题正确答案：A4向与自己平行的机关发请求函时，结尾的格式套语应写成（）A、特此请示B、请与审核批准C、特此报告D、特此通知正确答案：B5写作调查报告的一条毋庸置疑的准则是（）A、罗列事实B、用事实说话C、用观点说话D、条列观点正确答案：B6把计划进一步明细化，即如何完成计划的具体方法和步骤，安排具体行为的文书叫（）A、要点B、部署C、方案D、设想正确答案：C7行政公文中的成文日期使用正确的是（）A、2003.4.15B、03/04/15C、2003年4月15日D、二ＯＯ三年四月十五日正确答案：D8使用单位最多用途最广泛的一种公文是指（）A、通报B、通知C、命令D、公告正确答案：B9公文的作者指的是（）A、秘书人员B、下级领导C、本分公文的具体撰稿人D、负责本分公文的签批者正确答案：D10事务文书简报的期数指的是（）A、本年度的简报总数B、本年度所编简报顺序编号C、公文的文号D、编发单位所注明的日期正确答案：B11不能抄送给下级机关的公文是（）A、请示B、通报C、意见D、通知正确答案：A12申请书在_______已作为正式的公文文种。
（）A、澳门B、香港C、台湾D、中国大陆正确答案：D13答复下级机关的请示事项，使用（）A、指示B、批复C、通知D、通报正确答案：B14上级机关对下级机关报送的____必须表态。
应用写作作业答案
1 作业集标准(参考)答案 一、单项选择题： 1C 2C 3A 4A 5B 6D 7B 8A 9D 10A 11A 12C 13A 14A 15A 16C 17D 18C 19C 20D 21C 22C 23D 24C 25B 26B 27C 28A 29B 30C 31A 32A 33A 34A 35C 36A或D 37B 38B 39A 40D 41D 2
42B 43C 44D 45B 46D 47B 48C 49A 50B
二、学与练(文体写作) 51、(标题与文种5分,主送机关5分, 正文5分, 落款盖章年月日5分) 关于请求调整成品油零售价格的函 省物价局: 为适应国际原油价格连续上扬高位不下的态势, 我公司根据总公司要求,决定调高成品油零售价格，自201×年×月×日起，93#汽油每升调高至6.53元，97#汽油每升调高至6.93元, 0#柴油每升调高至6.40元。特此申报,请审核批准. ××集团××分公司 (盖章) 二0一×年×月××曰
52、(标题与文种5分,主送机关5分, 正文5分, 落款盖章年月日5分) 关于七月二十日晚暴雨成灾的紧急报告 县政府: 本乡于201×年7月20日晚因受强台风袭击突降暴雨，凌晨一点左右山洪暴发，冲毁了桥梁两座，冲走粮库稻麦等粮食××万公斤，冲垮民房一百二十八户, 虽无人员伤亡, 但人民财产损失严重。目前大雨仍在継续，全乡干部群众正在全力抗灾抢险。特此紧急报告, 妥否请指示. ××乡政府(盖章) 二0一×年七月二十一日
53、(标题与文种5分,主送机关5分, 正文5分, 落款盖章年月日5分) 关于要求增加20××年澳大利亚铁矿矿石分配量的函 国家发展与改革委员会： 根据我公司20×××年生铁计划产量安排，需消耗特矿石×××万吨，现已落实×××万吨，尚差×××万吨。考虑适当增加合理库存量及运输、装卸、落地等损耗，请求在原分配×××万吨的基础上，再分配我公司澳大利亚铁矿石×××万吨，以确保生产任务的完成。 特此请求, 请批准。 ×××××公司（盖章） 二0××年×月×日
四川农业大学英语平时作业
在线考试::试卷作答课程代码进入考试时间考生身份总大题数当前页信息页数信息剩余时间36100411月05日11:45W3203122311131 [查看]第1大题的第1页共1页/第1页119分50秒英语Ⅰ平时作业一、单选题(共20题，100分)1、Hsiao Li found a ______ of keys in the corridor, which turned out to bemine.bunchseriesfewpair2、Don't talk about her son's behavior at school. It's a(n)________ subjectto her.awkwardembarrassingnervousdisgraced3、I'd like to ________ the holiday arrangements once more before we leavetomorrow.go forgo overgo roundgo about4、Tom has got a decent ______ in a chemical factory.jobemploymentworkprofession5、As the clouds drifted away, an even higher peak became _________ to theclimbers. in sightvisibleobviousapparent6、When you read a book in a hurry, you can _______ some less importantdetails. leaveskidskipskin7、Without the _______ of TV, children might spend more time reading andwriting.watchingconcentrationshowdistraction8、China has great _______ to become an economic power in not too long a time.chanceconcernpotentialopportunity9、The little girl woke up screaming because she had had a_______.daydreamnightmarefantasysweet dream10、He talked so much during the chess match that he _________ the game.distracted me fromkept me fromprevented me fromstopped me from11、He used to have a _____ of stamp-collecting, but he has given itup.habithobbycustomlike12、As excellent work leads to promotions and wage increases, the workers have greater ______ to produce.motiveincentiveintentionenergy13、That small country has ______ independence.orderedexclaimedperformeddeclared14、Would you please help me to _______ up the present for the old gentleman?wrapbindcoversend15、On our way to New York, we _______ the town of Albany.got over came throughwent overgot through16、She talked to him for a long time and _____ him from doing that dangerous job.persuadeddissuadedovercameconquered17、The old lady showed her ______ by giving the beggar severaldollars.benevolenceadvantageprosperitydignity18、The old lady felt very _______ when her daughter forgot herbirthday.deceiveddesertedunfortunatedisappointed19、There is no ______ in going to the cinema now as the film has alreadystarted.reasoncausemotivepoint20、A voice _______ the program to announce the election results.brokeintobroke offcut downcut out提交中，请稍等……提交按钮在页面右上角第一大题单选题（共20题）01r。