电压继电器的线圈匝数()且线径小。

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问题:

电压继电器的线圈匝数()且线径小。

考点:电气保运考试电气保运中级工电气保运中级工题库
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补全对话(共10小题,每小题1分,计10分)
A)根据对话内容,将方框中符合对话情景的句子抄写在对话空白处,使对话恢复完整。
A: You look excited.小题1:_______________________________________
B:My cousin has won a million dollars in the lottery.
A:Wow!__小题2:___________________________________________
B:I'm not sure .maybe he will put a half in the bank and give the
rest to the medical research.
A: That sounds nice._小题3:___________________________________As you know a bad snowstorm(暴风雪) happened in the South China ,Lots of people died and many thousands of people were homeless.__ 小题4:________________________________________________
B: Yes, that's a good idea .they really need help.
A: ____小题5:______________________________________________
B: If I had a lot of money , I'd buy a very big house for my parents.
A. I want to help them.
B. What's up?
C. But if I were your cousin, I would give the rest to the charities.
D. What would you do if you had lots of money?
E. What's he going to do with the money?
题型:填空题

如图是一水平弹簧振子做简谐振动的振动的振动图象 (x-t图),由图可推断,振动系统(  )

A.在t1和t2时刻具有相等的动能和相同的动量

B.在t3和t4时刻具有相等的势能和相同的动量

C.在t4和t6时刻具有相同的位移和速度

D.在t1和t6时刻具有相同的速度和加速度

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费正清《中国:传统与变迁》一书中说:“隋及初唐时……制度和文化也取得了突破性进展”。下列有关隋唐政治制度的“突破性进展”的叙述,正确的是

A.相权三分,独立施政

B.中央集权,地方分权

C.分工明确,相互牵制

D.完善机构,皇权顶峰

题型:填空题

一名52岁男性在健康中心锻炼后晕倒了,为了确定他有无心跳,你应检查循环体征,包括脉搏检查。

进行心肺复苏的意义在于

A.心肺复苏降低了冠状动脉旁路需要

B.心肺复苏迫使室颤变为正常节律

C.心肺复苏对生还无效

D.迅速的心肺复苏为心脏提供了富含氧的血流,为除颤争取了时间

E.心肺复苏降低了心脏耗氧量

题型:填空题

在选购抽油烟机时,宜选择深型、小功率的抽油烟机,其运行效率较高。

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