二尖瓣换瓣指征为
A．左房压明显升高
B．瓣膜钙化
C．左室舒张末压明显升高
D．心功能Ⅲ级
E．年龄小于30岁
参考答案：A,B,C,D
— You do have the book I've been looking forward to?
— Ha, sure. I ____ if I didn't. [ ]
A. would never have called
B. hadn't called
C. won't call
D. wouldn't be calling
浙江农村合作金融机构向借款人发放的普通贷款，主要有（）。
A、信用贷款
B、保证贷款
C、抵押贷款
D、质押贷款
