“When _____ he come？” “I don’t know, but when he _____, I’ll tell you.”

A．does, comes

B．will, will come

C．does, will come

D．will, comes

下列哪项是清醒期血流动力学紊乱的原因()

A．高血压、低血压

B．低氧和高C0血症

C．体温变化

D．药物效应

E．以上都是