羟苯酯类
A.矫味剂B.非极性溶剂C.半极性溶剂D.极性溶剂E.防腐剂 下述液体药剂附加剂的作用为
参考答案:E
After long and hard struggle, his small family business began to _____. Hopefully, it will change into a large firm in the near future.
A.take over
B.take in
C.take off
D.take down
ICD-9-CM-3在我国统一使用的时间是()
A.1927年
B.1935年
C.1950年
D.1980年
E.1989年