热门试题:
[单选题]长轨车运行中,人员必须离开轨端( )以外,并严禁在长轨上走动。
A.1 m
B.2 m
C.3 m
D.4 m
[填空题]厨房地沟清洁方法:先(),用尼龙地刷蘸()刷洗地沟两壁及槽地,地沟盖板用同样方法刷洗,然后用清水冲洗干净。
[单项选择]2,5,16,47,142,______
A. 199
B. 245
C. 369
D. 425
[单项选择]腹部大手术后,早期出现肺功能不全的最常见原因是
A. 胃内容物误吸
B. 支气管痉挛
C. 肺不张
D. 气胸
E. 肺水肿
[多选题]已投入运行的安全自动装置,正常情况下,未经调控部门值班调度员同意,并下达调度指令时,严禁以下操作(____) 。
A.
修改安全自动装置运行定值
B. 擅自改变安自装置硬件结构和软件版本
C. 擅自恢复联切负荷的供电
D. 打印核对装置定值
[判断题]钢筋接头复检时,仍有1个试件的抗拉强度小于规定值,或有3个试件断于焊缝区,则该批接头不合格。
A.正确
B.错误
[判断题]通信网关机使用的信息点表应经相应( )审核通过。 A. 设备运维部门 B. 调控机构 C. 设备检修部门 D. 公司
A.正确
B.错误
[单选题]耐寒型支座适用温度范围为-40℃~+()℃。
A.50
B.60
C.70
D.80
[填空题]双燃料发动机天燃气系统的断流排放阀在发动机关停后会将燃气进口总管中的气()。
[单项选择]Butter is cheap when it is plentiful, and ______ when it is in shortage.
A. costly
B. expensive
C. dear
D. priceless
[单选题]民警胡某,参加抓捕重大杀人逃犯的行动。在围捕过程中,逃犯窜入一矿山存放炸药的仓库内。胡某接到指挥人员命令,发现逃犯身影,伺机可以击毙逃犯,胡某应该()。
A.绝对不能使用武器
B.根据现场情况,决定是否使用武器
C.坚决执行命令,使用武器
D.不使用武器予以制止,可能发生更为严重危害后果时,可以使用武器
[单项选择]Passage Two
Questions 29 to 32 are based on the passage you have just heard.
A. By coach.
B. By bus.
C. By car.
D. By train.
[填空题]The judgment that cigarette smoking is{{U}} (36) {{/U}}to health is the result of more than 30 years of research carried on by hundreds of scientists in this country and abroad. The{{U}} (37) {{/U}}that cigarette smoking is a significant health hazard is supported by every medical and health{{U}} (38) {{/U}}in the world which is known to have{{U}} (39) {{/U}}an opinion on the matter.
While cigarette smokers tend to have higher death rates than nonsmokers, 80 percent of the excess deaths{{U}} (40) {{/U}}with this habit are caused by three ’major diseases. They are lung cancer,{{U}} (41) {{/U}}heart disease, and emphysema. Lung cancer was a rare disease 50 years ago. Today, it is{{U}} (42) {{/U}}that 60,000 men and women per year in the United States will die of this disease. Among men it is the most{{U}} (43) {{/U}}cause of death from cancer.
Cigarette smoking is the major cause of lung cancer.{{U}} (44) {{/U}}, they are of small importance compared with cigaret
[单项选择]毒扁豆碱用作催醒是因为()
A. 有明显的外周性毒蕈碱样作用
B. 减少乙酰胆碱的释放
C. 激活中枢胆碱传递功能
D. 过量不会出现胆碱危象
E. 作用于中枢单胺受体
[多选题]在( )地段,普通无缝线路应单独布置轨条。
A.小半径曲线
B.长大路堑
C.列车制动、停车、起动
D.道口较集中
E.钢轨顶面擦伤严重
[单项选择]当人们做出某种行为后,若看到所希望的结果,这种结果就会成为控制行为的强化物,增加刚才的行为,这种行为主义的观点来自于( )。
A. ERG理论
B. 公平理论
C. 强化理论
D. 期望理论
[填空题]票务室必须满足()安防要求,保险柜应落地生根,保险柜钥匙必须由专人负责保管, 不得复制或转借他人。
[判断题]判断题试验不合格的电力安全工器具经处理后试验仍不合格的,应该立即报废。()
A.正确
B.错误
[单选题]早在2017年6月视察山西时,总书记就指出:“实现资源型地区经济转型发展,形成产业多元支撑的结构格局,是山西经济发展需要深入思考和突破的重大课题。”2020年5月总书记视察山西期间再次对( )提出明确要求。
A.持续推动产业结构优化调整
B.持续推动产业结构调整优化
C.持续推动产业结构升级优化
D.持续推动产业结构优化升级
[单选题]120.抽油机安装质量验收,测量抽油机两连杆平行及长度时,两连杆倾斜度不得大于( )。
A.A、2°
B.B、3°
C.4°
D.5°
[填空题]TYJL-II型计算机联锁系统的联锁机采用的为( )的冗余结构。
[判断题]热继电器和热脱扣器的热容量较大,动作不快,不宜用于短路保护。
A.正确
B.错误
[填空题]
[听力原文]11-15
When you take a walk in any of the cities in the West, you often see a lot of people walking dogs. It is still true that dog is the most useful and faithful animal in the world, but the reasons why people keep a dog have changed. In the old days people used to train dogs to protect themselves against attacks by other beats. And later they came to realize that a dog was not only useful for protection but willing to obey his master. For example, when people used dogs for hunting, the dogs would not eat what was caught without permission. But now people in the city need not protect themselves against attacks of animals. Why do they keep dogs, then Some people keep dogs to protect themselves from robbery. But the most important reason is for companionship. For a child, a dog is his best friend when he has no friends to play with. For young couples, a dog is their child when they have no child. For old couples, a dog is al so their child when their real children ha
[单选题]冷甲醇泵备用时候,须将入口阀和( )打开。
A.入口旁路
B.泵体导淋
C.出口阀
D.出口旁路阀
[单选题]腐蚀品的特性是对人体有腐蚀作用,很容易造成()。
A.烧伤
B.烫伤
C.化学灼伤
D.中毒
[单项选择]()是复旦大学的创始人。
A. 于右任
B. 马君武
C. 马相伯
D. 梁漱溟
[单选题]防坠器每次使用( )检查安全绳无断股、锈蚀;外观无破损、变形;用力猛拉2-3次均能有效锁止。
A.前
B.中
C.后
[单选题]根据《铁路旅客运输安全检查管理办法》,在列车上查获的危险品由()向前方停车站移交。
A.列车长
B.乘警
C.列车值班员
D.列车员
[单选题]正是因为畏惧和仇视舆论监督,少数无良官吏要绞尽脑汁甚至 是_地扼杀舆论监督。个别无良官员为了封杀记者之口,可以采用重金贿赂,可以滥用权力进行阻挠,甚至 于不惜采取暴力手段。
填入横线部分最恰当的一项是( )。
A.无所用心
B.不择手段
C.千方百计
D.苦思冥想
[单项选择]造成肾病综合征高脂血症的主要原因是()
A. 肾小管重吸收蛋白增加
B. 肝脏代偿性合成脂蛋白增加
C. 脂蛋白分解减少
D. 蛋白质摄入量增加
E. 肾小球滤过率减小
[判断题]客运站经营者可出租客运站经营许可证件,但不得改变客运站用途和服务功能。
A.正确
B.错误
[单选题]如果飞机在DES模式下处于或低于几何下降剖面,ATC要求更大下降率,机组使用了减速板,则:
A.飞机会增大下降率
B.发动机的N1会增加
C.飞机的目标速度会增大
D.飞机的目标速度会减小