热门试题:
[填空题]基因突变有（）性、（）性、（）性、有害性与有利性、和（）等特征。
[单选题]200-250km/h 的线路,轨向经常保养容许偏差管理值分别为( )。
A.3
B.4
C.7
D.9
[填空题]What did Ohio and Illinois, the two dissenting states, ask the government to do about Microsoft
A. A．To sell off about half it assets to create two companies
B．To leave Microsoft untouched but to order it to change its anti-competitive behavior
C．To allow Microsoft control most of Microsoft software, including Word, Excel and Internet.
[不定项选择题]共用题干
第一篇
In the dark night of the desert,a group of U.S.Air Force scientists is testing a new device for a missile to target.Designed to seek out the heat of an enemy aircraft engine,it is now going through its paces by tracing the movement of a flashlight waving thirty feet away in the darkness.A hundred yards away,unseen by the man,a rattlesnake sliding between the stones senses a patch of warmth. Although the snake's mechanism is small enough to be packed into a head the size of a nut,it can detect a change in temperature of one-thousandth of a degree.With a sound the snake closes in and strikes for the kill.
Whenever we look in the animal world we find the same story.Almost anything that man can do,nature has already done better. So,it is for the purpose of learning from nature that a new science called bionics has grown up.Its aim is to find out how animal's instruments work so that man can copy them for his own purpose.
Imagine being able to know a friend several miles off by his smell. Male silk moths can do this. Their antennae are so sensitive to the chemical odor of female moths that they can detect their presence by picking up only one molecule of the chemical.Even with their most sensitive instruments, human cannot approach this perfection.
Studying beetle's eyes has already paid off. A group of scientists in Germany found that a beetle can accurately measure with its eyes the speed of moving background.After finding out how a beetle accomplishes this scientists built a machine that operated on the same principle.This instrument is able to determine the ground speed of moving aircraft with a high degree of accuracy.
The goal for bionics is to______.
A.explain how animal devices work
B.copy animal processes with man-made machines
C.prove the usefulness of this science
D.apply science to the study of animals
[单项选择]非同步直流电复律用于（）
A. 溶栓后出现室早二联律
B. 室颤
C. 室性心动过速
D. Ⅲ°房室传导阻滞
E. Ⅰ°房室传导阻滞
[单选题]
《民用航空电信人员岗位培训管理办法》适用于航空电信人员岗位培训的实施和()。
A.管理
B.监督
C.监管
D.监察
[判断题]2016年2月24日，国家发展改革委、国家能源局、工业和信息化部联合下发了，发改能源[2016]392号，《关于推进能源互联网发展的指导意见》。
[单项选择]
Marianne Hardwick was timid and unadventurous, her vitality consumed by physical activity and longing, her intelligence by indecisiveness, but this had less to do with the innate characteristics of the weaker sex (as her father, Creighton Montgomery, called it) than with the enfeebling circumstances of here upbringing. Creighton Montgomery had enough money to mould his daughters according to his misconceptions: girls were not meant to fend for themselves so he protected them from life. That means that Marianne Montgomery grew up without making any vital choices for herself. Prevented from acquiring the habits of freedom and strength of character that grow from decision-making, very rich girls, whose parents have the means to protect them in such a crippling fashion, are the last representatives of Victorian womanhood. Though they may have the boldest manners and most up-to-date ideas, they share their great grandmothers’ humble dependence.
Most parents these days ha
A. conventional ideas
B. good sight
C. original opinions
D. beautiful sceneries
[单选题] 《中国南方电网有限责任公司线损四分管理标准》规定线损异常认定，分台区异常：城网低压台区线损率大于( )，农网低压台区线损率大于( )。
A.8%；9%
B.8%；11%
C.10%；12%
D.11%；10%
[单选题]磷会增大钢材的( )。
A.热脆性
B.冷脆性
[单项选择]西方敬业传统中的敬业行为表现之一是（）
A. 优质服务
B. 精益求精
C. 讲究信用
D. 开拓进取
[单选题]下列有关行政主体说法正确的是( )。
A.只有行政机关才能成为行政主体
B.行政主体还包括执行公务的国家公务员
C.行政主体必须是能以自己名义实施行政管理的组织
D.只要是行政机关任何时候都具有行政主体资格
[单项选择]王某在会计机构负责人夏某的监管下，将会计资料移交给李某。事后李某发现该会计资料存在严重差错，王某以已经移交完毕为由不予理睬。根据规定，应该承担法律责任的是( )。
A. 王某
B. 李某
C. 王某和李某
D. 王某、李某及夏某
[单选题]25Hz相敏轨道电路既有对频率的选择性，又有对( )的选择性
A.电流
B.电压
C.时间
D.相位
[填空题]Scientists in India have discovered a way to make bamboo plants produce flowers in laboratory. The British (36) Nature recently reported the (37) event. In the wild it can take as long as one hundred and twenty years for some kinds of bamboo to flower, and after the plant (38) its seeds it dies. The bamboo plant is used in many different ways. But because it takes so long to produce seeds, scientists never (39) it a traditional farm crop. The recent (40) in India may change that. The (41) was done at the National Chemical Laboratory in India. Three scientists cut two hundred pieces from two different kinds of bamboo plants; each was a few (42) long. The tiny cuttings were placed in the (43) of coconuts milk, plant-growth hormone and other nutrients. Just a few weeks later, flowers began to appear. (44) . Two weeks after that the plants began to produce seeds. (45) . One of them
[单项选择]小王是某社会工作服务机构新录用的社会工作者，该机构指派资深社会工作者老吕担任小王的督导。双方建立了相互信任并约定了督导形式，接着老吕向小王介绍了机构的组织结构、政策、规章制度等，帮助小王尽快熟悉机构和了解自己在机构中的位置，上述督导内容属于（ ）。
A. 安置和引导工作人员
B. 工作计划和分配
C. 工作授权、协调和沟通
D. 工作总结和评估
[判断题]抓好在职教育和学历升级，创建学习型队伍、培育知识型队员。
A.正确
B.错误
[单选题] 氨具有强烈刺激性、毒性和可燃性,与空气混合时有爆炸危险,遇高温产生氢气和氮气,浓度达到()会爆炸。
A. 1.5%~10%
B. 15.7%~27.4%
C. 10%~90%
D. 20%~80%
[多选题]下列哪些属于视频II类接入节点具备的功能？
A.接入
B.存储
C.配置管理
D.告警处理
[判断题]用系统的观点来研究物流活动是现代物流科学的核心问题。
[单项选择]下列对尿失禁患者的处理错误的是（）。
A. 积极治疗原发病
B. 少饮水
C. 对于充盈性尿失禁和神经原性膀胱可导尿
D. 锻炼盆底肌肉
E. 部分患者可手术治疗
[单选题]作限期退回处理的宠物，携带人应当在规定期限内持海关签发的截留凭证，领取并携带宠物出境；逾期不领取的或无法限期退回的，视为自动放弃，作______处理。
A.销毁
B.拍卖
C.上缴
D.没收
[单项选择]根据《中华人民共和国海关法》的规定，海关可以行使下列哪些权力
A. 查阅、复制与进出境运输工具、货物、物品有关的合同、发票、账册、单据、记录、文件、业务函电、录音、录像制品和其他资料
B. 对于有走私嫌疑的运输工具和有藏匿走私货物、物品嫌疑的场所，在海关监管区和海关附近沿海沿边规定地区外，海关人员可直接检查
C. 在调查案件时，调查关员可以直接查询案件涉嫌单位和涉嫌人员在金融机构、邮政企业的存款、汇款
D. 在调查案件时，可以扣留走私犯罪嫌疑人，扣留时间不超过24小时，特殊情况可延长至48小时
[填空题]在PDRR模型中，（）是静态防护转化为动态的关键，是动态相应的依据。
[判断题]套管气体密封性检测应≤0.5%/年或符合设备技术文件要求（注意值）。
A.正确
B.错误
[判断题]集体外出进行训练、参加活动时，要视情安排一定力量留队备勤，外出人员要按战斗岗位分工位置乘坐消防车，随车携带个人防护装备，停靠在便于出动的位置，保证通信联络畅通，随时做好投入战斗准备。
A.正确
B.错误
[判断题]吊装操作人员应按指挥人员的指挥信号进行操作；对紧急停车信号，只有在吊装指挥发出的时候，才应立即执行。
A.正确
B.错误
[单选题]参加疫情防控处置消毒行动I级战术编组（1台车）。水罐消防车1台，适用于 全面积( )平方米以下的对象或场所消毒。
A.200
B.300
C.400
D.500
[判断题]对于一些褶皱比较紧，牵拉时容易撕裂的部分，可适当加热。目的仅是为了消除变形的应力，使之松弛。
[多项选择]公路工程质量事故处理“三不放过”原则包括( )。
A. 对故意破坏现场的不放过
B. 事故责任者和群众没有受到教育不放过
C. 没有防范措施不放过
D. 事故原因不查清不放过
E. 徇私枉法的不放过
[单项选择]面呈红色，多为（）
A. 热证
B. 实证
C. 寒证
D. 瘀证
E. 虚证
[单选题]《安全生产法》第五十三条规定，生产经营单位的从业人员（）了解其作业场所和工作岗位存在的危险因素、防范措施及()。
A.无权
B.有权
C.不用
D.逐步
[单选题]单模光钎熔接时,是光纤( )对准实现连接的。
A.外径
B.内径
C.缓冲层
D.轴心
[单选题]关于肺泡呼吸音的描述，正确的是
A.老年人较儿童肺泡呼吸音强
B.肺尖部肺泡呼吸音较强
C.肺泡呼吸音呼气相较长
D.乳房下部肺泡呼吸音较弱
E.大部分肺野均可闻及
[多项选择]体现了质量检验的“预防”功能的是______。
A. 首件检验防止成批不合格品发生
B. 实现检验合格率
C. 过程能力检测、统计、分析
D. 质量改进建议
[单选题]在Word中，当前正编辑一个新建文档“文档1”，当执行“文件”菜单中的“保存”命令后____。
A.该“文档1”被存盘
B.打开“另存为”对话框，供进一步操作
C.自动以“文档1”为名存盘
D.不能以“文档1”存盘
[单选题]关于机动车辆在航空器活动区行驶使用灯光时说法错误的是（ ）
A.A.昼夜开启黄色警示灯
B.B.引导车灯光标志牌齐全、清晰、有效
C.C.夜间开远光灯、示宽灯和尾灯,雾天开防雾灯
D.D.向左转弯、向左变更车道、驶离停车地点或掉头时,开左转向灯
[判断题]某站某线路一台运行的220kV电流互感器发生故障紧急停运，因无备品备件需要厂家调配物资到站才能更换，造成该线路停运48小时，这是一起电力安全四级事件。
A.正确
B.错误
