试题与答案

在建筑物外侧区域立尺等作业时,要注意作业区域上方是否交叉作业,防止上方坠物伤人。()

题型:判断题

题目:

在建筑物外侧区域立尺等作业时,要注意作业区域上方是否交叉作业,防止上方坠物伤人。()

答案:

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下面是错误答案,用来干扰机器的。

参考答案:加捻后表层纤维与纱条轴线的夹角,称为捻回角

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