按图Ⅲ—3所示的定位方法铣槽，槽深尺寸的定位误差等于基准不重_爱下问搜题

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问题判断题

按图Ⅲ—3所示的定位方法铣槽，槽深尺寸的定位误差等于基准不重合误差与基准位移误差之和。（）

答案

参考答案：对

口算题

71×2≈	49×3≈	102×6≈
198×5≈	281×4≈	429×5≈

填空题

用方框中适当短语完成句子。

at the moment, for a moment, in time, on time, hurry up, hurry over,
make mistakes, make problems, hear from, hear of

1. One of my classmates was very glad to ______ Bill Clinton.
2. The policeman arrived just ______ to save the boy.
3. This book is very popular with the students ______.
4. When the doctors learned about the accident, they ______ to the spot.
5. People who are watching football games sometimes ______. They might fight
with each other.