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【ポンプ技術版 毎日一問】2020年1月20日(春節特典:解答発表前に正解すると10財富がもらえる)

2020-01-21View Original

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79.耐摩耗型油圧油の製品マークは()。 A、L-HL32  GB11118 B、L-HM32  GB11119 C、L-AN32  GB443 昨日の問題の正解:B 78.ドリル盤で穴を開けるとき、(B)が送り運動です。 A、ドリルビットの回転 B、ドリルビットの軸方向移動 C、ワークの回転 (翌日公開前日に解答、公開前に正解すると10財富の報酬、公開後に正解すると5財富の報酬、参加だけでも3財富の報酬)
Reply #22020-01-21
B、L-HM32  GB11119

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