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English Translations » 历史存档[信息] » 【Daily Topic】【Electrical Edition 20160909】

【Daily Topic】【Electrical Edition 20160909】

2016-09-09View Original

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Participation reward: 2 Wealth. Reward for the correct answer: 9 wealth. Among the following options, ( ) cannot be used as a ground wire or protective wire. 　　A. Water-gas pipe B. Thin-walled steel pipe or outer casing C. Metal mesh of insulation pipe D. Snake tube Correct answer: BCD
Reply #22016-09-09
Among the options listed for BCD, (BCD) cannot be used as a ground wire or protective wire.
Reply #32016-09-09
Among the following options, (B, C, D) cannot be used as grounding wires or protective wires.
Reply #42016-09-09
Among the following options, (bcd) cannot be used as a ground wire or protective wire

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Translated at 2026-07-20 23:27:34

Original: https://bbs.hcbbs.com/thread-1615930-1-1.html

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