下列药物对厌氧菌感染治疗有效的是
A．红霉素B．林可霉素C．庆大霉素D．苯唑西林E．诺氟沙星
参考答案：B
解析：林可霉素对厌氧菌有强大抗菌作用。
—Do you like playing computer games?
—No. but I ________.
A．used to
B．didn't
C．do
D．don't
Does she _____ a book that Black wrote?[ ]
A. haves
B. have
C. has
D. had
