________ the housing price, several measures have been adopted in the last two years.

A．Lowering

B．Having lowered

C．To lower

D．To have lowered

腹部损伤来急诊的病人腹腔抽出不凝血应诊为

A．后腹膜血肿

B．空腔脏器破裂

C．实质脏器破裂

D．误穿入血管

E．前腹壁血肿