[单选题]集中联锁以外的脱轨器及引向安全线或避难线的道岔，设（）。-我要搜题网

[单选题]个人保安线应使用有透明护套的多股软铜线，截面积不准小于（）mm²，且应带有绝缘手柄或绝缘部件。
A.20
B.16
C.14
D.12

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[单选题] 若被输送液体的黏度增大时,离心泵的效率( )。
A.增大
B.减小
C.不变
D.不定

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[单选题]1.20 驾驶机动车通过没有交通信号和管理人员的铁路道口怎样通过？
A.适当减速通过
B.空挡滑行通过
C.停车确认安全后通过
D.加速尽快通过

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[单选题]消防救援机构在推行办公自动化系统和编制消防监督业务管理软件时，(　　)设立电子文件的归档功能，实现文档生成与归档一体化，逐步实现档案管理计算机
A. 应该
B.可以
C. 必须
D. 应当

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[单项选择]

Government officials reported three new cases of mad cow, bringing the total so far this year to 99. Last year, France recorded just 31 cases of the mad cow disease. The rising numbers are in part (1) a new testing program that focuses on cows that are most (2) . That program has (3) 39 cases. But still 60 new cases were identified in the usual way, (4) were found in 1999. Many scientists (5) that this year, five years after safety precautions were (6) , the number of cases would be (7) .
The rise in cases has (8) some scientists to question whether the disease can be transmitted in ways not yet understood. Scientists are still (9) the disease, first recognized in cows in 1986.
It appears that it is not caused by a bacteria, virus or fungus, but (10) infectious particles called prion, perhaps (11) a virus or other agent. The disease kills cells in the brain, (12) it spongy and fu
A. stiff
B. rigidly
C. hard
D. roughly

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[多选题]应对经济全球化发展，我国全面提高对外开放水平的内容包括()。
A.在更大范围和更深程度上参与国际竞争与合作
B.坚持市场多元化战略，努力扩大出口
C.进一步吸引外商直接投资
D.积极实施“走出去”战略

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[判断题]( )学生实习使用乘车证，可以免费使用卧铺。
A.正确
B.错误

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[单选题]处理动车组车体外侧故障距接触网不足（）米时，必须按规定将接触网停电，并作好接地保护后方准作业。
A.1
B.2
C.3
D.4

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[单项选择] A few common misconceptions. Beauty is only skin-deep. One’’s physical assets and liabilities don’’t count all that much in a managerial career. A woman should always try to look her best. Over the last 30 years, social scientists have conducted more than 1,000 studies of how we react to beautiful and not- so-beautiful people. The virtually unanimous conclusion: Looks do matter, more than most of us realize. The data suggest, for example, the physically attractive individuals are more likely to be treated well by their parents, sought out as friends, and pursued romantically. With the possible exception of women seeking managerial jobs they are also more likely to be hired, paid well, and promoted. Un-American, you say, unfair and extremely unbelievable Once again, the scientists have caught us mouthing pieties (虔诚) while acting just the contrary. Their typical experiment works something like this. They give each member of a group--college students, perhaps, or teachers or
A. attractive women have tremendous potential impact on public job
B. good-looking women always get the best of everything
C. being attractive is not always an advantage for women
D. attractive women do not do as well as unattractive women in managerial positions

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[单选题]5月19日，从中国科学院紫金山天文台新闻发布会获悉，基于“悟空”号前四年半的在轨观测数据，来自该台等单位的研究人员，成功获得宇宙线氦核从70GeV至（）能段的精确能谱测量结果，并探测到氦核能谱新结构。
A.95TeV
B.90TeV
C.85TeV
D.80TeV

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[单选题]使用温度指示仪表时，一般不超过满量程的（）。 A.90% B.80% C.70% D.100%
A.A
B.B
C.C
D.D

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[单选题]同一区间内单元轨条的最高、最低锁定轨温相差超过（）℃，必须进行应力放散或调整。
A.5
B.10
C.15
D.20

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[单选题]在“全国信息核查”中，可通过（）核查人员信息。
A.姓名
B.年龄
C.所属行政区划
D.身份证号

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[多项选择]枣股上的主芽可萌发形成（）。
A. 枣吊
B. 枣股
C. 枣拐
D. 枣头

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[单项选择]一般来说，水质最软的水源是
A. 江河水
B. 泉水
C. 雨雪水
D. 井水
E. 湖水