We _____ walk in the moonlight, taking about _____ we were interested in.

A．used to, all what

B．were used to, all what

C．used to, all that

D．were used to, what

女性，29岁，孕35周后出现呼吸困难，下肢浮肿，查体：血压120／80mmHg，半卧位，颈静脉怒张。全心扩大，心率120次／min，呈奔马律，心音弱，心尖部闻及收缩期吹风样杂音Ⅱ级。两肺有湿啰音，肝肋下三指，肝颈回流阳性。此病例最可能的诊断是（）

A.风湿性心脏瓣膜病

B.围产期心肌病

C.缺血性心肌病

D.扩张型心肌病

E.心包病