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问题 判断题

检验卧式镗床滑座导轨在水平面内的直线度时，在机床上或机床外与床身导轨垂直放一平尺。

答案

参考答案：对

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CONVERSATION 2 (Questions 5-8)


The age when Miss Rowling started to write: (5) .
Miss Rowling considers herself very luck because she can (6) herself by writing.
Miss Rowling never really imagines a (7) audience when writing.
Miss Rowling (8) know where the ideas for the Harry Potter books came from.

CONVERSATION 2 (Questions 5-8)


The age when Miss Rowling started to write: (5) .
Miss Rowling considers herself very luck because she can (6) herself by writing.
Miss Rowling never really imagines a (7) audience when writing.
Miss Rowling (8) know where the ideas for the Harry Potter books came from.
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单项选择题

选用螺丝刀时，要注意（）的宽度和厚度必须与螺钉头上沟槽的长度和宽度相符。

A、刀口

B、道口

C、软口

D、平口
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