热门试题:
[单选题]维生素C能与硝酸银试液反应，产生黑色银沉淀，是因为分子中含有
A.二烯醇基
B.环己烯基
C.环氧基
D.己烯基
E.环己醇基
[判断题]手扳葫芦附带出厂合格证，使用时无需进行检验。( )
A.正确
B.错误
[单项选择]
| Questions 27—30 are based on a report about
generation gap. You now have 20 seconds to read Questions
27—30. |
According to the report, what is the most striking thing about interviews with students
A. The tone students had when talking about their parents: fond, warm and admiring.
B. The young women keep in close touch with their families, discussing matters big and small, academic and personal.
C. Many students turn to their parents for help with everything from roommate troubles to how to improve the paper they e-mailed home.
D. Not all college students are closely connected with their parents.
[单选题]触电伤员脱离电源后，正确的抢救体位是（）。
A.左侧卧位
B.右侧卧位
C.仰卧位
D.俯卧位
[单选题]个人提取外币现钞当日累计等值（ ）美元以下（含）的，凭本人有效身份证件在银行办理。
A.5000
B.10000
C.30000
D.50000
[判断题]为制造外销产品而进口的原材料，海关可以按实际加工出口的成品数量免征进口原材料的关税，也可以先对进口原材料征收关税，再按实际加工出口的成品数量予以退税。 ( )
[单项选择]镜面舌的形成机理是（）。
A. 热甚伤津
B. 水湿上泛
C. 胃无生发之气
D. 胃肠热甚
E. 热入营血
[判断题]人的自由限度是在认识必然性的基础上自由活动。
A.正确
B.错误
[多项选择]低碳优质碳素结构钢适合进秆各种冷、热压力加工，特别是（）。
A. 冷冲
B. 热压
C. 热加工
D. 冷加工
E. 冷弯
[单选题]以下所列不属于核稿要求注意的事项的是？
A.以下所列不属于核稿要求注意的事项的是？
B.要求格式规范，文体正确，结构完整
C.行文方向是否正确，有无多头主送、滥抄滥报、违制越级行为现象
D.实践中拟稿与核稿是不可逆的过程
E.公文是否经一定会议讨论通过，是否需上报并已获批准
[单选题]某项目经营期为5年，预计投产第一年经营性流动资产需用额为30万元，经营性流动负债为20万元，投产第二年经营性流动资产需用额为50万元，经营性流动负债为35万元，预计以后每年的经营性流动资产需用额均为50万元，经营性流动负债均为35万元，则该项目终结期一次收回的经营营运资本为（ ）万元。
A.35
B.15
C.85
D.50
[单选题]驻站联络员到岗后要向车间生产组织中心报岗。
A.段调度
B.车间生产组织中心
C.车间干部
D.作业负责人
[单选题]《普速行规》规定：列车冒进出站（进路）信号机是否需要退回线路内，按（ ）的指示办理。如退回时，无车辆乘务员（随车机械师）值乘的列车由车站派人将列车以调车方式领回线路内。继续运行时，按规定办理相关行车手续，发给司机行车凭证（按超长列车头部越过出站信号机时的凭证办理）。
A.车站值班员
B.助理值班员
C.列车调度员
D.机车调度员
[简答题]LFE31013 风力发电机组故障查询要遵循的基本顺序是什么？
[多选题]在纸币制度下，影响汇率变动的因素有（ ）。
A.国际收支
B.利率水平
C.通货膨胀因素
D.政府干预
E.一国经济实力
[单选题]就像农夫种了一辈子的水稻一样，安格尔几乎画了一辈子的裸体女人，可我们绝大多数人真正记住的却是他的惊世名作《泉》。我们记住《泉》，是因为《泉》的清髙绝俗洗净了我们这个世界和我内心的尘埃，这就像任何一位哪怕多么无知的人都不可能不知道有一种叫水稻的植物一样，因为我们绝大多数人都晕靠水稻喂养的。
这段文字谈论的核心问题是（ ）。
A.《泉》的清髙绝俗洗净了这个世界的尘埃
B.再无知的人都能读懂安格尔的惊世名作《泉》
C.安格尔的《泉》因清髙绝俗而得到了广泛的认可
D.安格尔的执著与专注成就了他的事业
[单项选择]Until the 1980s, the American homeless population comprised mainly older males. Today, homelessness strikes much (67) part of society. In fact, a 25-city (68) by the U. S. Conference of Mayors in 1987 found that children make (69) the fastest growing part of the homeless population. Many homeless children (70) in inner cities; this transient (短暂的) and (71) frightened student population creates additional (72) --both legal and educational--for already overburdened urban school administrators and teachers.
Estimates of the number of homeless Americans (73) from 350,000 to three million. (74) , estimates of the number of homeless school children vary radically. A U.S. Department of Educat-ion report, (75) on state estimates, states that there are 220,000 homeless school-age children, about a third of (76) do not attend school on a regular basis, (77) the National Coalition for the Homele
[填空题]IMS注册流程中P-CSCF 收到I-CSCF 发送的对REGISTER 的响应（ ）,网络发起对用户的认证。
[单选题]触电防护技术包括屏护、间距、绝缘、接地等,屏护是采用护罩、护盖、栅栏、箱体、遮拦等将带电体与外界隔绝。下列针对用于触电防护的户外栅栏的高度要求中,正确的是( )。
A. 户外栅栏的高度不应小于1.2m
B. 户外栅栏的高度不应小于1.8m
C. 户外栅栏的高度不应小于2.0m
D. 户外栅栏的高度不应小于1.5m
[多选题]28岁时，旅居美国的钱学森就已经是世界知名的空气动力学家。中华人民共和国成立以后，他抛弃国外优越的生活与工作条件，历尽千难万险，回归祖国的怀抱，投身到祖国的建设中。钱学森的行为给我们在新时期弘扬爱国主义精神的启示是
A.人有地域和信仰不同，但报国之心不应有差别
B.科学没有国界，但科学家有祖国
C.爱国主义是爱国情感、爱国思想和爱国行为的高度统一
D.经济全球化过程中要始终维护国家主权和尊严
[不定项选择题]共用题干
Earth Angels
1 Joying Brescia was 8 years old when she noticed that cigarette butts（烟头）were littering her hometown beach in Isle of Palms,South Carolina.When she learned that it takes five years for the remains of a cigarette to disintegrate（解体）,she decided to take action.Joying launched a“No Butts on the Beach"campaign.She raised money and awareness about the need to keep the beaches clean.With the help of others,Joying also bought or received donations of gallon-size plastic ice-cream buckets.The buckets were filled with sand,and placed at all public-access areas of the beach.The buckets allowed people to dispose of their cigarettes before hitting the beach.Two years later,Joying says the buckets are full and the beach is nearly free of cigarette debris（残片）.
2 People who live in or visit Steamboat Springs,Colorado,have Carter Dunham to thank for a new state wildlife refuge that preserves 20 acres of marshland and many species of wildlife.Carter and other students wrote a management plan for the area around the Yampa River.The plan was part of a class project when Carter was a freshman at Steamboat Springs High School.Working with the Colorado Division of Wildlife,Carter and his classmates mapped the area and species of animals living there.They also made decisions about,among other things,where fences and parking areas should be built.
3 Barbara Brown and her friends collect oil.It started as a project for their 4H Club after one of the girls noticed her father using motor oil to kill weeds on their farm in Victoria,Texas.They did some research and discovered that oil can contaminate ground water-a real danger in rural areas,where people live off the water on their land.The girls researched ways to recycle oil and worked with a local oil-recycling company on the issue.Now,the"Don't Be Crude"program runs oil-collection sites-tanks that hold up to 460 gallons-where people in the community can dispose of their oil.
4 Five years ago,11-year-old Ryan Hreljac was a little boy with a big dream for all the people in Africa to have clean drinking water.His dream began in the first grade when he learned that people were dying because they didn't have clean water,and that as little as $70 could build a well."We really take water for granted," says Ryan,of Kemptville,Ontario,in Canada."In other countries,you have to plan for it."Ryan earned the first$70 by doing extra chores（零工）, but with the help of others,he has since raised hundreds of thousands of dollars.His efforts led to the start of the Ryan's Well Foundation,which raises money for clean water and health-related services for people in African countries and developing countries.
Joying placed the buckets at all public-access areas to______.
A.make new materials
B.preserve wetland and animals
C.have clean air
D.have clean water
E.collect cigarette butts
F.cn11eit disnnsed oil
[单项选择]烧结多孔砖，其特点是：孔多而小，孔洞率( )，孔洞垂直于大面。
A. ≥15%
B. ≥20%
C. ≥25%
D. ≥30%
[单项选择]根据我国劳动法规定，女职工生育享受的产假不少于（）
A. 40天
B. 60天
C. 90天
D. 100天
[多选题]按照零星工程管理制度要求,委托单位的职责包含以下( )。
A.开工审批
B.施工协调
C.安全监护
D.验收交付
[判断题]在交通道口采取无跨越架施工时，应采取措施防止车辆挂碰施工线路。（ ）
A.正确
B.错误
[单选题]铁路货车站修检修记录保存期限为( )年。
A.3
B.2
C.1.5
D.1
[单项选择]规范化理论是关系数据库进行逻辑设计的理论依据，根据这个理论，关系数据库中的关系必须满足：每一个属性都是( )。
A. 长度不变的
B. 不可分解的
C. 互相关联的
D. 互不相关的
[单项选择]服务礼仪是列车服务质量的重要保证，是列车员人格和风度的体现，它能够满足旅客的心理需要，能调节（）之间的关系。
A. 列车员与旅客
B. 旅客与旅客
C. 列车员与列车员
D. 列车员与上级领导
[单项选择]行政执法文书必须依法制作，既要遵循程序法，又要依据（）
A. 行政处罚法
B. 民法
C. 实体法
D. 法律法规
[单项选择]男性，30岁，血友病病人，拟行右侧腹股沟斜疝修补术。气管内插管及气管内吸引时应注意（）
A. 气管内插管动作尽可能快
B. 选择鼻腔盲插管
C. 纤支镜引导气管内吸引下清醒鼻腔插管
D. 不要损伤咽喉、气管粘膜
E. 以上都是
[判断题]工作中电流互感器的结构特点是一次匝数很多二次匝数很少( )
A.正确
B.错误
