男性，18岁，四肢细长，高度近视。胸部X线片示升主动脉呈梭形瘤样扩张，心脏听诊可闻及主动脉第二区的舒张期叹气性杂音外，还能听到的杂音是（）

A.三尖瓣区收缩期吹风性杂音

B.心尖区舒张期隆隆性杂音

C.Austin-Flint杂音

D.A及C均正确

E.B及C均正确

The old man became very worried, standing at the gate, unable to find a man________he could turn for

help. [ ]

A. from whom  

B. at whom

C. into whom  

D. to whom