治疗新生儿衣原体肺炎，应首选哪一种抗生素（）
A.红霉素
B.头孢唑林
C.青霉素
D.氨苄青霉素
E.丁胺卡那霉素
参考答案：A
In order to improve English _____.
A．Jenny’s father bought her a lot of tapes
B．Jenny bought a lot of tapes for herself
C．a lot of tapes were bought by Jenny
D．a lot of tapes were bought by Jenny’s father
航空业的基础是（）
A.航空器制造业
B.军事航空
C.民用航空
D.航空器维修业
