---- What has made him look like lacking sleep?

----- _____ his wife is ill and he has to get up several times a night to attend to her.

A．For

B．Because

C．That

D．What

自体输血即当患者需要输血时，输入患者自己预先储存的血液或回收的血液，以达到清除或降低异体输血种种弊端的目的，它主要包括（）三种方式。

A.回收式、稀释式、贮存式

B.回收式、洗涤式、贮存式

C.稀释式、贮存式、洗涤式

D.稀释式、洗涤式、回旋式