Regulations on the levy of import duties on incoming passenger's luggage and articles shall be formulated by ______.

A．the Customs General Administration

B．the Tariff Commission

C．the State Council

D．the Economic Planning Commission

在突发性聋的类型中，痊愈率最差的是（）

A.低频下降型

B.中频下降型

C.高频下降型

D.平坦下降型

E.全聋型