用于外伤和手术的滴眼剂应在下列哪个洁净环境中进行配制和灌装
A.三十万级
B.十万级
C.一万级
D.百级
E.没有要求洁净级别
参考答案:C
对中药浸提液进行进一步的分离和精制,是要达到去粗取精的目的。
I thought things would get better, but()it is they are getting worse.
A.as
B.like
C.for
D.since