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毎日1問、正解者には6つの富を、参加者には2つの富をプレゼント;第477題

2016-03-28View Original

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単一選択問題:塩素アルカリ企業において、遮断弁は最も多く使用されるバルブの一つであり、特に媒体が純水、工業用水、蒸気の場合、遮断弁のバルブ芯が外れると、流体は( )。 A 流量は変わらない B 流量は減少する C 通過できない D 流量は増加する 答え:C 通過できない
Reply #22016-03-28
脱落しても、まだ支えられるんじゃないか?

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