NSAIDs有中等程度的镇痛效应，可用于治疗（）。

A.一般性疼痛

B.炎症性疼痛

C.术后疼痛

D.癌性疼痛

E.重度疼痛

Ever since he caught the N1H1, Peter _____ so much pain that he is coughing day and night.

A．suffered from

B．has suffered from

C．suffers from

D．were suffering from