【判断题】【消耗次数：1】
零件表面的粗糙度越小就越耐磨。（）
①
正确
②
错误
参考答案：
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相关题目
【多选题】
下面关于表面粗糙度要求的确定方法，叙述正确的是
①
根据尺寸精度等级确定粗糙度的要求
②
根据加工方法确定粗糙度的要求
③
根据表面的功能确定粗糙度的要求
④
参考类似零件确定粗糙度的要求
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