发病率最高的性传播疾病是（）
A.AIDS
B.梅毒
C.淋病
D.非淋菌 * * 炎
E.生殖器疱疹
参考答案：C
— There is________on using mobile phones at the gas station.
— Do you mean talking on the mobile phone________at the gas station?[ ]
A. a ban; is banned
B. ban; banned
C. a ban; banned
D. ban; is banned
