热门试题:
[单项选择]The Spread of Microorganisms
There is scarcely a place on earth which is naturally free of microorganisms
(46). But on external body surfaces, on lining membranes and inside tubes and organs that are connected with the outside---such as the mouth, throat, nose and large intestine ---- both harmless and pathogenic microbes live in large numbers. (47). If these natural defenses are sound, a person may conceal many microbes without ill effect. However, if his resistance becomes lowered, an infection can result.
Microbes are spread about through an almost infinite variety of means. (48). The more crowded the conditions, the greater the chances of epidemics breaking out.
(49).
Although microbes cannot fly, the dust of the air is alive with them. In close quarters the atmosphere is further polluted by bacteria-loaded tiny drops discharged by coughing and even normal conversation. Pathogenic microbes are also spread by rats, mice, flies and mosquitoes. (50). In slum areas there
[单选题]尖轨跟端直向轨距加宽向辙叉方向递减，距离为（ ）m。
A.A、1.5
B.B、2
C.C、3
D.D、4
[判断题]坚持市场化手段为主的多种货币工具的灵活运用是我国货币政策成功的保证。
A.正确
B.错误
[单项选择]应用破伤风抗毒素的目的是
A. 杀死破伤风杆菌
B. 中和血液中游离毒素
C. 抑制破伤风杆菌生长
D. 中和神经结合毒素
E. 清除毒素来源
[判断题]根据《行政复议法》的规定,对两个或两个以上行政机关以共同的名义作出的具体行政行为不服的,向其共同上一级行政机关申请行政复议。
A.正确
B.错误
[判断题]起重作业时，风速大于12m/s和大雨、大雪、浓雾等恶劣天气时，可以进行塔吊安装、拆除和使用作业。（）
A.正确
B.错误
[单项选择]妊娠合并心脏病的孕妇死亡的主要原因是
A. 心脏病病程长
B. 未经产前检查
C. 孕妇年龄大
D. 心衰与感染
E. 孕周过大
[单选题]若一张工作票下设多个小组工作，工作负责人应指定每个小组的小组负责人(监护人)，并使用( )。
A.工作任务单
B.安全措施票
C.派工单
D.工作任务卡
[单项选择]按无牙颌组织的分区，上颌隆突属于
A. 副承托区
B. 缓冲区
C. 后提区
D. 主承托区
E. 边缘封闭区
[判断题]人身伤害程度分为：轻伤、重伤、群伤。
A.正确
B.错误
[多选题]3.215. 第215题
用电计量装置包括（）。
A.计费电能表
B.电压、电流互感器
C.二次连接线
D.计量箱（柜）
[填空题]设备润滑中的“五定”是定期清洗更换、定质、定人（ ）、（ ）
[判断题]轨道车、在区间被迫停车不能继续运行时，司机要立即组织抢修，采取紧急措施，尽快开通线路，需要救援时应立即请求救援
A.正确
B.错误
[单选题]同一账户用同一通知书编号只能冻结（ ）次。
A.一
B.二
C.三
D.四
[单项选择]按照《全国统一建筑下程预算工程量计算规则》的规定，以下各项中，应计入砌筑墙体工程量的是( )。
A. 突出墙面的台虎头砖
B. 120mm以上的腰线的突出部分
C. 180mm以上的腰线的突出部分
D. 混凝土圈梁
[判断题] 中国人民的梦想同各国人民的梦想息息相通,实现中国梦离不开和平的国际环境和稳定的国际秩序
A.正确
B.错误
[简答题]空调、非空调列车服务质量规范中对车门管理有何规定？
[单项选择]某房间里有甲、乙、丙、丁四个人，他们的语言分别是英语，法语和西班牙语。其中，只有丁一个人说英语；丙不说西班牙语；甲和某人说同一种语言；乙不能和甲交流；每个人只会说一种语言。则可知甲说( )。
A. 英语
B. 法语
C. 西班牙语
D. 无法确定
[单项选择]双矩形组合导轨有（）及刚度高，制造、调整简单的优点。
A. 承载能力大
B. 导向精度高
C. 能够承受较大力矩
D. 磨损后相对位置不变
[单项选择]关于保险公司的管理责任，下列说法错误的是（）。
A. 保险公司不得委托未取得《保险代理从业人员资格证书》的人员从事保险营销活动
B. 保险营销员根据保险公司的授权从事保险营销活动的行为，由保险营销员承担责任
C. 保险公司应当加强对保险营销员的培训和管理，提高保险营销员的职业道德和业务素质，不得唆使、误导保险营销员进行违背诚信义务的活动
D. 保险公司应当组织保险营销员参加岗前培训和后续教育培训
[单项选择]Taiwan police cannot decide whether to treat it as an extremely clever act of stealing or an even cleverer cheat. Either way, it could be the perfect crime, because the criminals are birds homing pigeons!
The crime begins with a telephone message to the owner of a stolen car: if you want the car back, pay up. Then, the ear owner is directed to a park, told where to find a bird cage and how to attach money to the neck of the pigeon inside. Carrying the money in a tiny bag, the pigeon flies off.
There have been at least four such pigeon pick ups in Changwa. What at first seemed like the work of a clever stay at home car thief, however, may in fact be the work of an even lazier and more inventive criminal mind—one that avoids not only collecting money but going out to steal the car in the first place. Police officer Chen says that the criminal probably has pulled a double trick: he gets money for things he cannot possibly return. Instead of stealing cars, he lets someone else do
A. he reads the ads in the newspaper
B. he lives in the same neighborhood
C. he has seen the car owners in the park
D. he has trained the pigeons to follow them
[判断题]消防通道的宽度、高度不应小于4米。
A.正确
B.错误
[判断题]运维班操作票应按月装订并及时进行二级审核。保存期至少1年。
A.正确
B.错误
[单选题]BOM离线状态指什么（ ）。
A.与Internet网断开连接
B.与车站计算机系统（SC）断开连接
C.与 BOM 电源线断开连接
D.与PCA断开连接
[多选题]行政执法机关应当根据法律、法规和规章的规定，制定重大执法决定法制审核办法，明确重大执法决定的（）、法制审核的具体（）等内容。
A.程序
B.方式
C.范围
D.时限
[判断题]利用深井,烟热,化工等模拟装置训练时,必须检查装置安全功能,严格控制起爆炸和燃烧额使用()。( )→易
A.正确
B.错误
[多选题]加快建立覆盖城乡居民的社会保障体系,保障人民基本生活要做到() ( )
A. 完善基本养老保险制度
B. 把解决住房问题放在重要位置
C. 推进社会管理体制改革创新
D. 保障人民的一切需求
[多选题]如何实施交通事故救援道路警戒?( )
A.警戒距离在一般道路不少于200米
B.警戒距离在一般道路不少于150米
C.警戒距离在高速公路不少于500米
D.警戒距离在高速公路不少于300米
[判断题]两台相同的泵串联后压头较任一台使用时高,是增加一倍 。
A.正确
B.错误
[单项选择]
The mystery (县案) around the disappearance of the famous crime (犯罪) writer Agatha Christie in 1926 was almost as(1) as any of her exciting stories. At about 11 o’clock on the evening of Friday, December 3rd, Mrs. Christie had got into her car and taken a drive without saying (2) she was going. She didn’t return.
The next morning her car was found without (3) at Newlands Corner, Surrey. It was (4) put on record that the Surrey Police did not find (5) until 11: 00 that morning. People (6) that she might have killed herself.(7) as the days went by, it was suggested that she was (8) . The press and the public naturally took great interest in the (9) , with at least one newspaper offering a reward (县赏) to anyone who could find the (10) writer.
Of course the police did their best to (11) her. But, sadly, after a week’s (12) they had made no progress. In the end they decided that Agatha must (13) the area.
Agatha finally made (14) on Tuesday, Dec
A. research
B. interest
C. review
D. search
[单项选择]SIGN（）函数的功能是（）。
A. 返回表达式的绝对值
B. 返回指定表达式的符号
C. 返回表达式的算术平方根
D. 返回指定表达式的整数部分
[多选题]不按照规定请示.报告重大事项，情节较重的，予以（ ）。[1分]
A.警告
B.记过
C.记大过
D.降级或者撤职
[单项选择]石韦来源于( )
A. 蚌壳蕨科
B. 鳞毛蕨科
C. 紫萁科
D. 乌毛蕨科
E. 水龙骨科
[判断题]( )BB013弹簧管式压力继电器的特点是调压范围大,启、闭压差小,重复精度低
A.正确
B.错误
