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【毎日のテーマ】【電気版20160911】

2016-09-11View Original

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参加報酬:2財富。正解者への報酬:9財富 電気の保護用接地には、主に( )などが含まれます。  A. 電気化学的腐食防止用アース  B. 直流アース  C. 雷保護用アース  D. 静電気防止用アース 正解:ACD
Reply #22016-09-11
A. 電気化学的腐食防止用アース    C. 雷保護用アース  D. 静電気防止用アース

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