The police have ____ power to deal with such matters by ____ law．

A．the; the

B．不填；不填

C．不填；the

D．the；不填

哪些抗生素可使重症肌无力患者症状加剧（）

A.氨基糖甙类

B.大环内酯类

C.头孢类

D.青霉素类

E.四环素类