首页/ 题库 / [单选题]为了提高工作效率,磨削较软的金属和粗加工的答案

为了提高工作效率,磨削较软的金属和粗加工时,选用()。

单选题
2022-02-24 05:37
A、疏松的砂轮
B、组织密集的砂轮
C、硬度很高的砂轮
D、有一定钝化程度的砂轮
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正确答案
A

试题解析

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