治疗肺炎球菌肺炎最常用的抗生素是()
A.红霉素
B.头孢唑啉
C.青霉素
D.克林霉素
E.磺胺类药物
参考答案:C
How do you want to _______ this difficult problem? [ ]
A. do with
B. deal with
C. deal of
D. do of
风湿性心内膜炎最常累及()
A.肺动脉瓣
B.三尖瓣
C.主动脉瓣
D.二尖瓣
E.左心房后壁