She       volleyball regularly for many years when she was young.

A．was playing

B．played

C．has played

D．had played

患者，男，58岁，因右下肢剧烈疼痛、麻木、发凉、苍白6小时就诊。既往有多年房颤病史。最可能的诊断是（）。

A.血管闭塞性脉管炎

B.动脉硬化性闭塞症

C.动脉栓塞

D.雷诺病

E.深静脉血栓形成