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【单选题】
关于乳剂的制备方法叙述错误的是A.
油中乳化法又称干胶法，是先将乳化剂分散于油相中研匀后加水相制备成初乳
B.
水中乳化法又叫湿胶法，是先将乳化剂分散于水中研匀，再将油加入
C.
将油水两相混合时，两相界面上生成的新生皂产生乳化的方法叫做新生皂法
D.
机械法制备乳剂的时候一定要考虑混合顺序，否则不能生成乳剂
E.
纳米乳除含有油相、和乳化剂外，还应含有辅助成分
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