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19. (单选题) 热电偶测温时,显示不准,应用毫伏表测其（）。

A、 电压

B、 电流

C、 电容

D、 电阻

时间：2021-09-01 16:43 关键词：青书学堂平顶山学院化学化工仪表及自动化（专升本）

答案解析

A

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