题目内容

The () of women in the profession had risen to 17.3%.

A. scale
B. proportion
C. occupy
D. diverse

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Practice is the sole () for testing truth.

A. estimate
B. scale
C. criterion
D. circulation

These programs will () new markets for farmers.

A. open down
B. open up
C. open on
D. open in

The lowest () would put the worth of the jewel at $ 200.

A. criterion
B. estimate
C. proportion
D. circulation

轴流泵的叶轮一般安装在水面()

A.以下
B.以上
C.表面位置
D.不一定

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