Houses in Wuxi are now ______ expensive that ______ many people can’t afford ______ them.

A．such, such, to buy

B．so, so, to buy

C．such, so , buy

D．so, such, buy

哌唑嗪的降压作用机制是通过（）

A.阻断α1受体

B.阻断β受体

C.钙通道阻滞

D.抑制血管紧张素Ⅰ转换酶

E.直接扩张血管