题目内容

在整数中正素数的个数()

A. 有一个
B. 有限多
C. 无限多
D. 不一定

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During the reading lesson, the teacher asked thestudents to read a few __ from the novel.

A. pieces
B. essays
C. fragments
D. extracts

巷道掘进工作面的炮眼,按其用途和位置可分为 () 眼、() 眼和 () 眼。

Alarm clocks needlessly wake ______ households. I want to design something targeted at the

A. whole
B. total
C. full
D. high

计算待估项目价差、结构差异调整后的建筑工程费单价;

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