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【多选题】
下列有关溶解度的检查方法正确的是A.
称取研磨为细粉的供试品适量置于25±2℃的溶剂中
B.
称取研磨为细粉的供试品适量置于30±2℃的溶剂中
C.
每隔5min强力振摇30s
D.
观察30min内的溶解情况
E.
观察60min内的溶解情况
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