骨折时最易发生骨缺血坏死的部位是

A．远端桡骨头

B．远端锁骨头

C．肱骨头

D．胫骨内髁

E．股骨头

—What do you think of this jacket?

—Well, I like its color, but the price is a little bit too ______. I don't think I can afford it. [ ]

A. cheap

B. low

C. expensive

D. high