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问题
单项选择题
一般选用装配尺寸链的公共环作()。
A.组成环
B.减环
C.封闭环
D.补偿环
答案
参考答案:D
阅读理解
看图,判断下列句子正(T)误(F)。
( ) 1. There is a mirror behind the closet.
( ) 2. There is an end table on the bed.
( ) 3. There is a Teddy Bear in the trash bin.
( ) 4. There is a telephone on the lamp.
( ) 5. There is a picture over the bed.
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问答题 简答题
影响测量绝缘电阻准确度的因素主要有?
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