题目内容

convenient的名词形式为______

A. convenienty
B. convenients
C. convenientment
D. convenience

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高速公路、一级公路每盘水泥混凝土掺和料计量允许偏差( )%。

If you go to work by bicycle, you will get lots of ______.

A. exercise
B. exercises
C. exercising
D. exercised

高速公路、一级公路每盘水泥混凝土细集料计量允许偏差( )%。

Things are now better instead _____ worse.

A. with
B. of
C. on
D. to

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