妊娠期高血压疾病(妊娠高血压综合征)的基本病变是

A．肾素-血管紧张素-前列腺素系统平衡失调

B．慢性弥散性血管内凝血

C．血液高度浓缩

D．水钠严重潴留

E．全身小动脉痉挛

Supposing you can't write, what would you do

A．may not

B．couldn't

C．are unable

D．wouldn't