This passage doesn't tell us that______.
A.Paris is an exciting place for people to live in
B.big cities have a lot of serious problems
C.people in big cities usually are very dirty
第4题
复方碘口服液处方中,加入碘化钾的目的是()
A.乳化剂
B.助溶剂
C.潜溶剂
D.增溶剂
E.润湿剂
第8题
复方碘溶液处方:碘50g、碘化钾100g、蒸馏水适量至1000ml,其中碘化钾作为该液体制剂的哪类附加剂
A.助溶剂
B.矫味剂
C.防腐剂
D.潜溶剂
E.增溶剂
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