利福平的化学结构属于下列哪一种
A．大环羧酸类B．氨基糖苷类C．大环内酰胺类D．环状多肽类E．大环内酯类
参考答案：C
看看你的应变能力，用所给单词的适当形式填空。
1.Which one do you like ______ (much), the first one, the second one or the third one?
2.Can you tell me the ______ (mean) of the word?
3.I think "united"______(mean) "together".
4.Look! They're ______(talk) to each other on the phone.
5.They come from ______. They speak _____ (French).
6.It's the main language _____ (use) at the UN.
主病脏气衰微，或疼痛、惊恐、跌打损伤等病证的脉象是（）
A.涩脉
B.结脉
C.代脉
D.促脉
E.牢脉
