Some questions _______at their class meeting last week.

A．raised

B．rose

C．were risen

D．were raised

阿米巴肝脓肿外科手术引流的指征是（）

A.脓肿有可能破溃

B.内科治疗疗效欠佳

C.脓肿穿破引起化脓性腹膜炎

D.脓肿靠近体表且体积较大

E.一经确诊为肝阿米巴脓肿，均应立即手术治疗