题目内容

Come out,or I'II bust the door down.

A. shut
B. set
C. break
D. beat

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证券交易所作为进行证券交易的场所,其本身不持有证券,不进行证券的买卖,但要决定证券交易的价格。()

A.to goB.goingC.goesD.go

A. to go
B. going
C. goes
D. go

Choset’s snake robots could make more movements than the ones others developed.

A. Right
B. Wrong
C. Not mentioned

在图3.4所示并联电路中,若R=XC=XL,I=10A,则IR,IC,IL和IX各是多少?若I不变,而改变f,则U是增加还是减小?

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