热门试题:
[单项选择]碘量法测定水中总氯时，要求在水样中加入缓冲溶液后，pH控制3.5～（）范围内。
A. 4.5
B. 5.2
C. 4.2
[判断题]在Dreamweaver MX中，除了预设的框架类型以外，还可以用重复插入或分割的方法，创建各种形式的框架。
[单项选择]下列哪一项不属于半月板损伤之检查（）。
A. 抽屉试验
B. 重力试验
C. 麦氏征
D. 研磨提拉试验
E. 交锁征
[判断题]临时用电线路的安装、接引、拆除可由工作负责人在电气专业人员的指导下进行,作业前,上级开关应挂牌上锁。 ( )
A.正确
B.错误
[单选题]ILS的A点的位置是在进场方向沿着跑道中心延长线，（ ）。
A.A、距跑道入口4公里处测得的下滑道上的一
点
B.B、距跑道入口4海里处测得的下滑道上的一点
C.C、距跑道入口4英里处测得的下滑道上
的一点
D.D、距跑道入口 1050米处测得的下
滑道上的
[判断题]2.136. 第136题
监控运行评价以提高设备监控运行水平和设备运维管理水平为导向，反映监控信息的规范性和正确性、设备 缺陷情况和监控运行工作量。
A.正确
B.错误
[多选题]在评估家庭关系的代间传递时,我们主要看的3个方面是?()
A.学历水平
B.情绪模式
C.教养方式
D.婚姻模式
[简答题]设二次型f(x1，x2，x3，x4)=xTAx的正惯性指数为p=1，又矩阵A满足A2-2A=3E，求此二次型的规范形并说明理由．
[单选题]按照变量值的性质,某研究中“药物反应(阴性和阳性)”变量为
A.数值变量
B.二项分类变量
C.连续型变量
D.多项分类变量
[单选题]
高锰钢整铸辙叉的辙叉心轨面剥落掉块，在允许速度大于120km/h线路上长度超过15mm，且深度超过（），达到轻伤标准。
A.1mm
B.1.5mm
C.2mm
D.3mm
[单选题]某员工出差回来报销差旅费918元,其中火车票2张,510元,住宿费408元（ ）,财务人员在做账时此笔单据进项税入账金额为（ ）元.
A.23.09
B.49.89
C.42.11
D.65.20
[判断题]( )内应力的重新分布会引起已加工完零件的相应变形，使零件丧失原有的加工精度。
A.正确
B.错误
[单选题]脱轨表示器的显示（ ）及月白色灯光——表示线路在开通状态。
A.带白边的绿色圆牌
B.绿色圆牌
C.带白边的绿色方牌
D.带白边的绿色长方牌
[单项选择]当事人之间因基于不确定的事件取得利益或遭受损失而达成的协议称为（）。
A. 射幸合同
B. 有偿合同
C. 附合合同
D. 议商合同
[判断题]在制冷空调应用场合由于部分负荷时压力变化不是很大,离心式制冷压缩机采用预旋叶片控制比变速控制更有利。
A.正确
B.错误
[多项选择]证券公司申请为期货公司提供中间介绍业务资格，应当符合的条件包括( )。
A. 配备必要的业务人员
B. 具有满足业务需要的技术系统
C. 已按规定建立期货保证金安全存管制度
D. 申请目前1年各项风险控制指标符合规定标准
[单选题]带电作业需要停用重合闸的作业和带电断、接引线工作应由（ ）履行许可手续。
A.运行值班人员
B.值班调控人员
C.专责监护人
D.工作负责人
E.略
F.略
[多选题]设备小修作业完成后，（）须会同（）共同试机，验收合格后填写（），并签字确认，设备维修车间每月汇总后将设备检修单装订成册，
A.维修人员
B.操作人员（或包保人）
C.《设备点检单》
D.《设备检修单》
[多选题]工作许可后，工作负责人、专责监护人应向工作班成员交待（），告知危险点，并履行签名确认手续，方可下达开始工作的命令。
A.现场电气设备接线情况
B.工作内容
C.人员分工
D.带电部位
E.现场安全措施
F.略
[填空题] Urban life has always involved a balancing of opportunities and (36)_____against dangers and stress; its (37)__________ force is, in the broadest sense, money. Opportunities to make money mean competition and competition is stressful; it is often at its most (38)_________in the largest cities, where opportunities are greatest. The presence of huge numbers of people inevitably involves more conflict, more traveling, the (39)_________of public services and (40)_________to those (41) ________and criminals who are drawn to the rich pickings of great cities. Crime has always (42) ________in the relative anonymity of urban life, but today’’s ease of movement makes its control more difficult than ever; there is much evidence that its extent has a direct relationship to the size of the communities. City (43)________may become trapped in their homes by the fear of crime around them.
As a defense against these developments, (44)__________________________: contacts with other people a
[不定项选择题]共用题干
Bedwetting
Millions of kids and teenagers from every part of the world wet the bed every single night,it's so common that there are probably other kids in your class who do it.Most kids don't______(51)their friends,so it's easy to feel kind of alone,like you might be the only one on the whole planet who wets the bed.But you are not______(52).
The fancy______ (53)for bedwetting is nocturnal enuresis（夜间遗尿）.Enuresis runs in families.This means that if you urinate（排尿）,or pee, while you are______(54) ,there's a good______(55) that a close relative also did it when he or she was a kid.Just like you may have______(56)your mom's blue eyes or your uncle's long legs,you probably inherited bedwetting,too.
The most important thing to remember is that no one______(57)the bed on purpose.It doesn't mean that you ' re______ ( 58 ) or a slob（懒汉）.It ' s something you can ' t help______( 59 ).For some reason, kids who wet the bed are not able to feel that their bladder（膀胱）is full and don't______(60)up to pee in the toilet.Sometimes a kid who wets the bed will have a realistic______(61)that he is in the bathroom peeing-only to wake up later and discover he's all wet.Many kids who wet the bed are very______(62) sleepers.Trying to wake up someone who wets the bed is often like trying to wake a log-they just stay asleep.
Some kids who wet the bed do it every single night.Others wet some nights and are______(63)on others.A lot of kids say that they seem to be drier when they sleep at a friend's or a relative's house.That's because kids who are anxious______(64)wetting the bed may not sleep much or only very lightly.So the brain may be thinking,"Hey,you!Don't wet someone else's bed!"This can help you ______(65)dry even if you're not aware of it.
61._________
A.memory
B.thought
C.idea
D.dream
[多选题]企业精神是（）
A.重德
B.务实
C.敬业
D.进取
A.重德
B.务实
C.敬业
D.进取
[单选题]夜间起落飞行,不得超越前面的航空器,各航空器之间的( )间隔不得小于( )km。
A.侧向,4
B.纵向,4
C.侧向,3
D.纵向,5
[判断题]发生如H2S、SO2气体中毒者，应立即施行人工呼吸法抢救。
[判断题] ( ) 牵出线调车，提钩地点基本不固定。
A.正确
B.错误
[单选题]（）适用于集团公司管内200km/h及以上的铁路和200km/h以下仅运行动车组列车的铁路。
A.《安规》
B.《技规》
C.《行规》
D.《行细》
[判断题]横越线路时，应一站、二看、三通过、注意邻线、左右机车、车辆动态及脚下有无障碍物。
A.正确
B.错误
[单选题]平面定轴轮系的传动比为正号，表示轮系首、末轮转向（ ）。
A.相同
B.相反
C.同时指向节点
D.同时背离节点
[单项选择]为完成目标而制订的组织在未来一段较短时间内具体的行动方案的是（）
A. 战略决策
B. 战术决策
C. 常规决策
D. 非常规决策
E. 团体决策
[单选题]患者女性，54岁。患肝硬化8年，近日出现大部分时间昏睡，可唤醒，有扑翼样震颤，肌张力增加，脑电图异常，锥体束征阳性。此时该患者处于并发症的
A.昏迷前期
B.昏睡期
C.浅昏迷期
D.深昏迷期
E.前驱期
[单项选择]对盗窃或者破坏煤矿矿区设施、器材及其他危及煤矿矿区安全的行为，一切单位和个人都有权（）。
[单选题] 热量传递的基本方式包括（ ）①传导传热 ②对流传热 ③辐射传热
A. ①②
B. ②③
C. ①②③
D. ①③
[单选题]允许速度大于120km/h且不大于160km/h的正线道岔地段,高低的静态几何不平顺临时补修容许偏差管理值为()mm。
A.7
B.8
C.9
D.10
[判断题]（2019年）企业未满足销售收入确认条件的售出商品发生销售退回时，应借记“库存商品”科目，贷记“主营业务成本”科目。（ ）
A.正确
B.错误
[填空题]Certain phrases one commonly hears among Americans which (1) to individualism include: "Do your own thing. " "I did it my way. " "You’ll have to decide that for yourself. " "You made your bed, now lie in it. " "If you don’t (2) for yourself, no one else will." "Look out for number one. "
(3) the value they place on individualism is the importance Americans (4) . Americans assume that people need some time to themselves or some time alone to think about things or recover their (5) . Americans have great difficulty understanding foreigners who always want to be with another person, who (6) .
If the parents can afford it, each child will have his or her own bedroom. Having one’s own bedroom, (7) , fixes in a person the notion that she is (8) a place of her own where she can be by herself, and (9) . She will have her clothes, her books and so on. These things will be hers and no one
