临床标本分离弯曲菌时,常用选择性培养基,这种培养基中最常用的抗生素是()
A.头胞噻吩
B.头孢噻肟
C.头孢他啶
D.头胞呋辛
E.头孢哌酮
参考答案:E
I said it ________ as a joke.Don't take it too seriously. [ ]
A. particularly
B. possibly
C. merely
D. gently
小儿受结核感染到PPD试验出现阳性反应的时间是()
A.2~4周
B.4~8周
C.8~12周
D.12~16周
E.10~14周