试题与答案

工作铣刀的截形是根据被加工刀具的齿沟截形来选择的,通常截形为曲线的齿沟如麻花钻齿沟要

题型:单项选择题

题目:

工作铣刀的截形是根据被加工刀具的齿沟截形来选择的,通常截形为曲线的齿沟如麻花钻齿沟要用()来铣削。

A.双角铣刀

B.单角铣刀

C.成形铣刀

答案:

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参考答案:管理是科学也是艺术。具体表现在:(1)科学性:一些管理活动具有科学的精确性:如生产管理、财务管理:或者具有科学的内地规律性,如战略管理理论。管理的知识可以帮助并指导人们的管理实践,使人们的...

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题型:选择题

在下面文字中的三处横线上,分别选择填入句子,与上下文衔接最恰当的一项是(    )(2分)

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①所以必须采取合理的调节对策

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③逆反心理的进一步消极发展还可能向犯罪心理或病态心理转化

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A.②④⑤

B.④③①

C.①③④

D.②③⑤

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