— In Germany, can I buy red roses for my dinner hostess as a present?

— _____, because it means you are in love with her.

A．It doesn’t matter

B．Yes, go please

C．You’d better not

D．Not at all

男，50岁。间歇性跛行1年，加重1个月来就诊。无外伤史，无烟酒嗜好。

体格检查最可能发现的是（）

A.双侧直腿抬高试验阳性

B.足背动脉搏动明显减弱

C.口唇发绀

D.腰臀部明显压痛点

E.腰腿部无明显阳性体征