题目内容

预制构件和集成部品部件制作单位在产品制作阶段，按照设计图纸等资料进行制作，如果发现设计图纸有误、或者难于实现制作和安装的设计问题，预制构件工厂可以自行进行调整和变更。

A. 对
B. 错

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位形公差是指在力学、物理、化学作用下，建筑部件或分部件所产生的位移和变形的允许偏差，墙板的温度变形就属于位形公差。

A. 对
B. 错

Experiments of this kind __________ in both the U.S. and Europe well before the Second World War.

A. have conducted
B. have been conducted
C. had conducted
D. had been conducted

It is widely acknowledged that students should be _________ in terms of overall qualities.

A. supported
B. matched
C. evaluated
D. controlled

The only question is ________ we should go on with this work or not.

A. what
B. whether
C. that
D. why