下列哪些药物可用于厌氧菌感染（）
A.青霉素
B.克林霉素
C.甲硝唑
D.头孢西丁
E.头孢曲松
参考答案：A, B, C, D, E
The suggestion that is worth _______ is that the students should learn something practical. [ ]
A. being considered
B. to be considered
C. to consider
D. considering
我们生活在社会中，每个人都与他人有或远或近的关系，都因不同的社会身份而负有不同的责任。[ ]
