(2013·河南豫西五校高三质检)—I prefer western food. It's a kind of healthy food.

—________ But western food is said to be high in sugar and fat, such as hamburgers and fries.

A．Is that right?

B．How do you know that?

C．Do you really think so?

D．Who told you that?

下肢静脉曲张术后早期活动的目的是预防（）

A.肌肉僵直

B.患肢水肿

C.血管痉挛

D.术后复发

E.深静脉血栓形成