热门试题:
[单选题] 机车车辆限界全宽的最大尺寸是（ ）mm。
A.3200
B.3400
C.3600
D.4800
[判断题] ( )七辊牵伸机采用长轴传动，是通过一台直流电动机带动一根长轴，经减速器和变速器传递到各单元牵伸机，达到同步运转的要求。
A.正确
B.错误
[判断题]《铁路旅客运输办理细则》中规定，列车内验票原则上每400千米一次，运行全程不足400千米的列车应查验一次，特殊区段由列车长决定查验次数的增减。
A.正确
B.错误
[填空题]用右手握住通电导体，让拇指指向电流方向，则弯曲四指的指向就是（ ）方向。注：维修电工知识
[单选题]工作许可时，工作票一份由工作负责人收执，其余留存于（）处。
A.工作票签发人或专责监护人
B.工作票签发人或工作许可人
C.工作许可人或用户负责人
D.工作许可人或专责监护人
E.略
F.略
[多项选择]王某还处于管制执行期间，他的下列哪些行为是违反管制规定的行为
A. 与他人合作写了一本《黄昏》，使用化名出版
B. 悄悄离开所在市到广州经商
C. 经常约一些朋友到家作客，并且未向公安机关报告此情况
D. 经常在公众场合发表“我是被冤枉的”言论
[判断题]高路堤地段一般指高出自然地面3m地段。5m(1分)
A.正确
B.错误
[单选题]带电作业需要停用重合闸（含已处于停用状态的重合闸），应向( )申请并履行工作许可手续。
A.运行人员
B.设备运维管理单位
C.调控人员
D.运行值班负责人
[判断题]由于井下开掘引起的，存在于巷道和回采面周围的力称为矿压。（ ）
A.正确
B.错误
[单项选择]
Such Accidents Are Rather Common
We all have (36) days when everything (37) wrong. A day may begin well enough, but suddenly everything seems to get out of control It seems as if a single unimportant thing may cause a number of things to happen. Let us (38) that you are (39) a meal and keeping an eye (40) the baby at the same time the telephone rings and this means your troubles are beginning. While you are (41) the phone, the baby pulls the tablecloth off the table, (42) your half-prepared meal. You hang up hurriedly and attend (43) your baby. Meanwhile, the meal gets (44) . (45) if this were not enough to bring you to tears, at the same time, your husband arrives, unexpectedly (46) three guests to dinner.
Things can go wrong on (47) people on the road. During the rush hour one evening two cars hit each other and troth drivers began to argue. The w
A. See
B. Seeing
C. To see
D. Saw
[单选题]依据《DL 5009.2-2013 电力建设安全工作规程 第2部分电力线路》第3.3.2.2条规定：交又作业时，上下层施工人员应相互配合，下层作业应设置安全监护人，上层物件未固定前，下层也可以作业。
A.正确
B.错误
[单选题]HRP与底物TMB反应后的测定波长为
A.278nm
B.450nm
C.403nm
D.495nm
E.492nm
[单项选择]A
The need for good managers is not going away. It is intensifying. With ’’flatter’’ organizations and self-directed teams becoming common with personal computers and networks making information available to more people more quickly; the raw number of managers needed is decreasing. However, the need for good managers, people who can manage themselves and others in a high stress environment, is increasing.
B
I believe anyone can be a good manager. It is as much trainable skill as it is inherent ability; as much science as art. You have confidence in yourself and your abilities. You are happy with who you are, but you are still learning and getting better. You are something of an extrovert. You don’’t have to be the life of the party, but you can’’t be a wallflower. Management is a people skill—it’’s not the job for someone who doesn’’t enjoy people.
C
You are honest and straight forward. Your success depends heavily on the trust of others. You are an includer not a
[单选题](49318)人字型复轨器有效复轨距离为( )㎜。
A.150
B.240
C.360
D.420
[多选题](235255)泵填料发热或泄漏大，一般有( )、轴封水或冷却水不足、填料磨损严重、轴套磨损严重、密封环安装不到位、轴的偏转等。
A.填料太紧或填料压盖不正
B.密封水管堵塞或密封水不清洁
C.填料套与轴不同心
D.填料选择或安装不当
[判断题]当电容器的电容值一定时，加在电容器两端的电压变化越大，通过电容器的电流越小。( )
A.正确
B.错误
[判断题]辙叉分为钢轨组合式、整体铸造式和可动心轨式三种
A.正确
B.错误
[单选题] 绝缘手套、绝缘靴、绝缘棒,使用单位每( )送供电段进行一次性能试验.
A.3个月
B.6个月
C.一年
D.二年
[单项选择]
A. although
B. because
C. and
D. but
[单选题]延安整风运动,其主要内容不包括( ).
A.反对主观主义以整顿学风
B.反对宗派主义以整顿党风
C.反对党八股以整顿文风
D.反对军阀主义以整顿军风
[简答题]电气回路中断路器（开关）的主要作用是什么？
[单选题]将电客车一单元闸刀开关打至库用电源位，此时与库用电源连接的是（ ）。
A.仅本单元辅助逆变器
B.两个单元的辅助逆变器
C.本单元的牵引逆变器
D.本单元的牵引逆变器和辅助逆变器
[单选题]
股骨颈骨折观察前后移位时,理想摄影体位是
A.髋关节正位
B.侧卧髋关节侧位
C.股骨颈前后位
D.髋关节侧斜位
E.股骨颈仰卧水平侧位
[单选题]任何( )引起井底压力降低的因素,都有可能最终导致溢流发生。
A.一个
B.两个
C.多个
D.一个或多个
[判断题]“灰白色”表示岩性的颜色以灰色为主，白色次之。
A.正确
B.错误
[单选题]槟榔的功效是
A.杀虫消积，行气活血
B.杀虫消积，行气止泻
C.杀虫消积，行气止咳
D.杀虫消积，行气利水，截疟
E.杀虫消积，行气止痢
[判断题]全部磨煤机和一次风机停运后，可停止给煤机运行。
A.正确
B.错误
