2020年版中国药典中,磺胺醋酰钠的含量测定采用HPLC法。
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.[单选题]--What's the weather like today?--
A. It's sunny and warm.
B. It likes a fish.
C. It is wonderful!
[单选题]--May I help you?You seem to be having some problems.-- . thanks. I will manage
A. It's all right.
B. No problem
C. OK.
4. [单选题]--Which one of these do you want?--Either will be ok.
A.I'm sure
B.Go ahead.
C. I don't mind.
5. [单选题]-The English Speech Contest has been cancelled.--Oh,no!
A. It's OK
B. what a pity!
C. It's pretty good.