题目详情
题目详情:

[判断题]禁止越过遮栏(围栏)。
A.正确
B.错误

热门试题:

[判断题]为方便记忆,所有信息系统可以设置成相同密码( )
A.正确
B.错误
[单项选择]常用的增塑剂是()
A. 丙二醇
B. 醋酸纤维素酞酸酯
C. 醋酸纤维素
D. 蔗糖
E. 乙基纤维素
[填空题]声波在穿过介质时会被吸收而减弱。气体的吸收( ),衰减( );液体的吸收( ),衰减( );固体的吸收( ),衰减( )。
[单项选择]下列物质既能与酸反应,又能与碱反应的是 ( )
A. 氨基酸
B. 蔗糖
C. 乙酸
D. 乙醇
[单项选择]

Fair and () competition in government procurement around the world is good business and good public policy.Competitive pricing,product () and performance improvements result from competitive practices and help ensure that government authorities get the best () for the public they serve.

Competitive pricing,product () and performance improvements result from competitive practices.
A. recession
B. innovation
C. crisis
D. ability
[单选题]使用等离子弧焊时,通常采用( )电流和( )特性电源。 【单选题】
A.直流,平
B.直流,垂降
C.交流,垂降
D.交流,平
[单项选择]对于多个互斥方案的比较和优选,采用年等额净回收额指标时( )。
A. 选择投资额较大的方案为最优方案
B. 选择投资额较小的方案为最优方案
C. 选择年等额净回收额最大的方案为最优方案
D. 选择年等额净回收额最小的方案为最优方案
[多选题] 变压器按调压方式可分( )。
A.有载调压变压器
B.工业变压器
C.无载调压变压器
D.电焊变压器
[单选题]以下对防毒面具选择原则描述错误的是()
A.A.防毒面具只能用于氧气含量合格的有限空间
B.B.防毒面具只能用于非IDLH的有限空间
C.C.选择防毒面具时要注意面罩与佩戴者面部的贴合程度
D.D.当有限空间中存在的有毒有害气体不止一种,且不属于一种过滤件类型时,应选择能防护毒性最大气体的滤毒罐/盒
E.略
F.略
[简答题]如何进行气调贮藏的管理?
[单选题]既能活血祛瘀,又能润肠通便的药物是
A.桃仁
B.杏仁
C.柏子仁
D.紫苏子
E.红花
[判断题] 高铁综合视频监控系统利用GSM-R传送图像。 ( )
A.正确
B.错误
[单选题]PPP、HDLC等广域网技术工作在OSI参考模型的( )。
A.物理层和应用层
B.物理层和数据链路层
C.数据链路层和网络层
D.数据链路层和表示层
[单选题]有限空间作业前,应对作业设备、工具及防护器具进行()。
A.安全检查
B.安全试验
C.清洗消毒
[单选题]250km/h(不含)~300km/h线路轨道静态几何尺寸容许偏差管理值中轨距临时补修为( )。
A.+2mm -2mm
B.+5mm -2mm
C.+5mm -3mm
D.+4mm -3mm
[多选题]在司机室侧门的承载小车上有两个偏心轮,通过调节这两个偏心轮,可以调整( )。
A.V形
B.滚轮与滑道的间隙
C.对中性
D.护指胶条宽度
[判断题]可以随意破拆应力不均部位,必须破拆时,严防破拆过程中部件突然撕裂弹射伤人。
A.正确
B.错误
[单选题]在控制中心下达越站命令后,会在DMI哪个元素下显示()。
A.发车信息
B.下一站距离
C.下一站
D.列车位置
[单项选择]分化型甲状腺癌伴有肺转移131I常用治疗剂量是()
A. 3.7GBq
B. 5.55GBq
C. 7.4GBq
D. 2.96GBq
E. 11.1GBq
[多选题]车载控制器CC的主要功能是( )
A.列车定位
B.锁闭进路
C.自动驾驶
D.超速防护
[单选题]科研论文的摘要不应该包括以下哪一项要素( )
A.研究的创新点
B.研究目的
C.研究对象
D.研究方法
E.研究结果
[单选题]行调离岗( )以上,应重新经过考试,合格后方可上岗。
A.A、3个月
B.B、一年
C.C、6个月
D.D、4个月
[单选题]车间内的明、暗插座距地面的高度一般不低于( )多少米?
A.03米
B.02米
C.01米
[单选题]中华人民共和国公民在我国领域外犯本法规定之罪,按本法规定的最高刑为()以下有期徒刑的,可以不予追究。
A.5年
B.10年
C.3年
D.1年
[多选题]调车进路需经过集中区和非集中区时,应分段( )。
A.要道
B.要道还道
C.请求进路
D.确认信号
[单项选择]现在特别提款权以()作为定值标准。
A. 黄金
B. 美元
C. 英镑
D. 一篮子货币
[单选题]代表营养状况最易取得的重要指标是
A. 上臂围
B. 腹壁皮下脂肪厚度
C. 腹围
D. 体重
E. 胸围
[多项选择]期货公司在客户没有保证金或者保证金不足的情况下,有下列()情形的,应当认定为透支交易。
A. 允许客户开仓交易
B. 不通知客户追加保证金
C. 不对客户强行平仓
D. 允许客户继续持仓
[简答题]通用知识:在自动电器中又可分为()。
[单项选择]

What do you think of American health care system Most people would be (1) by the high quality of medicine (2) to most Americans. There is a lot of specialization, a great deal of (3) to the individual, a (4) amount of advanced technical equipment, and (5) effort not to make mistakes because of the financial risk which doctors and hospitals must (6) in the courts if they (7) things badly.
But the Americans are in a mess. To the problem is the way in (8) health care is organized and (9) . (10) to pubic belief it is not just a free competition system. To the private system has been joined a large public system, because private care was simply not (11) the less fortunate and the elderly.
But even with this huge public part of the system, (12) this year will eat up 84.5 billion dollars—more than 10 percent of the U. S. Budget—a large number of Americans are left (13) A. over
B. out
C. off
D. away

[单选题]氩弧焊时,对焊接区域所采取保护方法是( )。
A.气保护
B.气一渣联合保护
C.混合气体保护
D.渣保护
[单项选择]What our society suffers from most today is the absence of consensus about what it and life in it ought to be. Such consensus cannot be gained from society’’s present stage, or from fantasies about what it ought to be. For that the present is too close and too diversified, and the future too uncertain, to make believable claims about it. A consensus in the present hence can be achieved only through a shared understanding of the past, as Homer’’s epics (史诗) informed those who lived centuries later what it meant to be Greek, and by what images and ideals they were to live their lives and organize their societies.   Most societies derive consensus from a long history, a language all their own, a common religion, common ancestry. The myths by which they live are based on all of these. But the United States is a country of immigrants, coming from a great variety of nations. Lately, it has been emphasized that an asocial, narcissistic ( 自我陶醉的 ) personality has become characteristic of Ameri
A. lack of serious disagreement over the organizations of social life.
B. non-existence of unanimity on the forms the society should take.
C. general denying of its conformity with what it was unexpected to be.
D. public negation of the consensus on how to conduct social reforms.
[多选题]A-A-001 1 7 3
安全生产三违是指( )。
A.违章指挥
B.违章作业
C.违反劳动纪律
D.违反作业规程

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