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【单选题】
不皂化物测定原理：油脂和碱皂化为肥皂后（  ）醚类有机溶剂，不皂化物（  ）醚类溶剂。根据这一性质，可用醚类提取样品，分离后经处理便得不皂化物的含量。
A.
溶于；不溶于
B.
不溶于；能溶于
C.
不溶于；不溶于
D.
溶于；溶于
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