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毎日1問、正解者には6つの財富が報酬として与えられ、参加者には2つの財富が与えられます;7月16日

2016-07-16View Original

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穴埋め問題:懸濁法ポリ塩化ビニルの重合反応過程において、重合タンクの上部、中部、下部の3か所で大きな温度差が生じると、重合反応に()が生じていることを示す。 A、細かい材料が多すぎる B、大きな粒子または粗い材料 C、水の添加量が多すぎる D、鍋に付着する材料が多すぎる 答え:B、大きな粒子または粗い材料

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