题目内容：
用万用表判别二极管的极性时，应使用万用表的欧姆挡。( )
参考答案：【答案仅供学习，请勿对照自行用药等】
选择题：用万用表判别二极管的极性时，应使用万用表的欧姆挡。( )
- 题目分类：技工类
- 题目类型：选择题
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