治疗牙周炎的全身用药的药物是
A．甲硝唑B．碘酚C．复方碘甘油D．碘氧液E．复方氯己定
参考答案：A
Li Ping and Liu Ming are in the same _____, but in differernt _____. [ ]
A. class ; grade
B. grade ; class
C. class ; grades
D. grade ; classes
HIV感染者可出现的皮肤肿瘤有
A．Kaposi肉瘤
B．皮肤淋巴瘤
C．恶性黑色素瘤
D．鳞状细胞癌
