- Can Lihua help me with my English?

　　　　- I regret to tell you her English is________ yours.

A．as good as

B．no more than

C．not better than

D．as much as

关于先天性冠状动脉瘘的超声表现，叙述错误的是（）。

A.二维超声冠状动脉主干和（或）分支扩张

B.部分病例可追踪观察到迂曲增宽的冠状动脉引流腔室的瘘口

C.冠状动脉瘘入右心系统，则为左向右分流

D.冠状动脉瘘入左心系统，则为左向左分流

E.冠状动脉瘘入左心室，呈连续性分流频谱