單項選擇題

【A1/A2型題】用吐溫40(HLB值15.6)和司盤80(HLB值4.3)配制HLB值為9.2的混合乳化劑100g,兩者各需()

A.43.4g56.6g
B.9.9g9.9g
C.50g50g
D.20g80g
E.60g40g

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