试题与答案

常用于O/W型乳剂型基质的乳化剂是A.硬脂酸钙B.羊毛脂C.月桂醇硫酸钠D.十八醇E

题型:单项选择题

题目:

常用于O/W型乳剂型基质的乳化剂是

A.硬脂酸钙
B.羊毛脂
C.月桂醇硫酸钠
D.十八醇
E.单硬脂酸甘油酯

答案:

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参考答案:A,C,D解析:[考点] 第五章管道工程安装第一节给排水、采暖、燃气工程安装:给排水工程。 [思路] 气压给水设备有定压式、变压式、气水接触式和隔膜式等多种形式。在用户对水压没有特殊要求时,一般常...

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