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问题 单项选择题

大型洞室施工中安装的锚杆应力计最基本的要求是（）。

A、抗振动，便于施工；

B、灵敏度高；

C、抗腐蚀，不怕潮湿；

D、受温度变化影响小。

答案

参考答案：A

阅读理解
阅读理解。
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单项选择题

计算机辅助设计的简称是______。

A．CAI

B．CAT

C．CAM

D．CAD
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