单项选择题

In this chapter we will（）the magnetic effects of the electric current.

A．deal with
B．deal in
C．trade with
D．drop in

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单项选择题

We all believe he is qualified（）the position.

A．in
B．with
C．at
D．for

单项选择题

They thought it（）question to answer.

A．too difficult
B．too difficult a
C．a too difficult
D．too a difficult

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