题目内容

轮速传感器的作用是检测车轮的转速( )

A. 对
B. 错

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霍尔式轮速传感器也可以检测其电阻( )

A. 对
B. 错

I can jump ___ I can swim.

A.and
B. but
C. or

Birds can’t swim ___ they can fly.

A. and
B. but
C. or

__ can the boy do? He can sing English songs.

A. Which
B. What
C. Why

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