绘制图样时，应采用机械制图国家标准规定的（）种图线。 - 查题网

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成人高等教育 / 实用电子工程制图

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绘制图样时，应采用机械制图国家标准规定的（）种图线。

A、
7
B、
8
C、
9
D、
10

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实用电子工程制图

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