— She must be in red.

— No,          . She wears a green coat.            [ ]

A. she is                      

B. she must not

C. I don't think so              

D. I am not

风湿性心瓣膜病左房室瓣狭窄最重要的体征是

A．二尖瓣面容

B．肺动脉瓣区第二心音亢进

C．心尖区第一心音增强

D．心尖区舒张中晚期隆隆样杂音

E．肺动脉瓣区第二心音分裂