属于氨基糖苷类的药物有()
A.庆大霉素
B.交沙霉素属(大环内酯类抗生素抗菌谱广)
C.克拉霉素(大环内酯类抗生素)
D.小诺霉素(沙加霉素)
参考答案:A, D
骑驴追婢的故事与下列哪一位人物有关?()
A.阮籍
B.嵇康
C.谢安
D.阮咸
We are()how an error like this could have happened.
A.searching
B.researching
C.surveying
D.investigating