题目内容

workspace, colleagues, discussion, respond, ignore, codesChoose the above words to fill in the gaps in these sentences.1 You should never___ your ___ but should say “good morning” when you arrive at the office.2 John had a very serious___ about working hours with the new trainee.3 If your ___is not big enough, you can always use the conference room for your meetings with the customer.4 One important___ you should follow is to ask for permission before taking somebody’s things.5 It is polite to___ if somebody asks you a question.

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光栅栅距为0.02mm,经十倍频后,每一脉冲都相当于()

A. 20μm
B. 10μm
C. 2μm
D. 5μm

光栅利用什么,使得它能测得比栅距还小的位移量()

A. 莫尔条纹的作用
B. 新型光源
C. 倍频电路
D. 计算机处理数据

检测装置按被测量和检测装置安装位置的关系分类有 和。

旋转变压器是一种角度测量元件,它是根据 原理工作的。

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