一患者股骨颈骨折术后3周，突发左侧髂窝及股三角区疼痛，左下肢明显肿胀，患肢皮温较对侧高。足背动脉搏动良好。

进一步确定诊断最佳方法（）。

A.深静脉回流试验

B.浅静脉及交通支瓣膜功能试验

C.下肢动脉血管造影

D.下肢静脉顺行造影

E.Buerger试验

— You have never met a famous film star, ________?

— Yes, I have. I met Maggie Zhang last year.

[ ]

A. did you

B. didn't you

C. haven't you

D. have you