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【多选题】
下列关于溶液型液体制剂配制原则叙述中,正确的是( )
A.
先取处方总量1∕2~4∕5的溶剂溶解固体药物
B.
先加难溶的药物,后加易溶的药物
C.
先加固体药物,后加液体药物
D.
助溶剂、抗氧剂等附加剂后加入
E.
溶液剂一般应过滤
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A.
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【简答题】在下图所示电路中,试求电流I 和电压U 。
查看完整题目与答案