题目内容

{铜电解阴极板采用铅银合金板。( )}

A. 对
B. 错

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{铜电解精炼槽电压为0.25-0.35V。( )}

A. 对
B. 错

Employee should be to exercise after busy work,which is very important.

A. examined
B. evolved
C. evaluated
D. encouraged

Sometimes appropriate pressure from life and work can the huge potential hidden in you.

A. bring out
B. set out
C. put on
D. turn on

As far as I know,several companies are with each other for that profitable project.

A. competing
B. sponsoring
C. begging
D. praising