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毎日1問、正解者には6つの富を報酬として、参加者には2つの富を報酬として支給;9月17日

2016-09-17View Original

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複数選択問題:以下はPVC懸濁重合反応過程における防粘釜剤の作用です:( )。 A、釜の粘着を防ぐ B、重合釜の熱伝達効果を確保する C、釜の洗浄回数を減らす D、センサーの測定感度を向上させる 答え:ABCD
Reply #22016-09-17
以下は、PVCの懸濁重合反応過程における防粘釜剤の作用です:(b)。

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