單項(xiàng)選擇題

進(jìn)行消毒液濃度監(jiān)測時(shí),監(jiān)測試紙一端放在消毒液內(nèi)浸泡多長時(shí)間取出,多長時(shí)間后對照色板:()

A.0.5s,5s
B.1s,5s
C.5s,5s
D.1s,10s
E.3s,10s

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