能明显缓解甲亢患者交感神经兴奋症状，并能抑制T₄变为T₃，但不引起粒细胞缺乏的药物是（）

A.普萘洛尔

B.甲基硫氧嘧啶

C.丙基硫氧嘧啶

D.甲巯咪唑

E.卡比马唑

Many questions ________ at the meeting, but he answered none.

A．came up

B．raised

C．were talked

D．asked