—Whose CD player is this?

—It's mine. It ______ me 800 yuan. [ ]

A. took

B. spent

C. paid

D. cost

男，42岁，着凉后右侧腰部、臀部、股后部及小腿外侧疼痛就诊。检查坐骨神经沿途部位有压痛，踝反射存在，但无相应关节活动。

如考虑是坐骨神经疼痛，重要阳性体征是（）

A.Kernig征

B.Lasegue征

C.Brudzinski征

D.Babinski征

E.Gordon征