BY一2型逆变器镇流器采用()电路互补,以改善灯管工作电压波形。 A.RC B.LC

题型:单项选择题

问题:

BY一2型逆变器镇流器采用()电路互补,以改善灯管工作电压波形。

A.RC

B.LC

C.RL

D.RLC

考点:车辆电工考试中级车辆电工中级车辆电工题库
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给一间房子铺地砖,选用3分米×3分米的正方形砖要960块,选用4分米×4分米的正方形砖,要多少块?(用比例解)

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补全对话。(10分)

A:Hello!

B:hello,is that Kate?

A:Yes.

B:This is Ann. How are you?

A:Fine.小题1:____________________________

B:Yes.I am.What’s up?

A:Can you come over to my home?

B小题2:__________________. Why?

A:Tomorrow is my mother’s birthday.小题3:__________.I want you to help.

B:No problem.When will it begin?

A:小题4:________________________

B:And where?

A:At my home.

B:Good小题5:____________ _______.See you then.

A:See you.

请从下面的选项中选出:

A.I’m busy with the party.

B.Are you free today?

C.At three o’clock in the afternoon.

D.I will get to your home in twenty minutes.E.Sure.

题型:单项选择题

某一年的教师节是星期一,那么国庆节那天是星期(    )。

题型:单项选择题

一般情况下,变动收益证券比固定收益证券( )。

A.收益高,风险小

B.收益低,风险小

C.收益低,风险大

D.收益高,风险大

题型:单项选择题

在同一DNA链上反向排列的两个互补序列为

A.启动序列
B.共有序列
C.反转重复序列
D.操纵序列

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