下列哪项因素不致影响微循环血流灌注（）
A.周围血管异常扩张
B.血容量不足
C.心功能不全心排出量减少
D.代谢性酸中毒
E.慢性间歇性出血
参考答案：E
—Listen! The water is still running.
—Oh, I forget _____ the tap off.[ ]
A. to turn
B. turning
C. to have turned
D. having turned
醛固酮的主要作用是
A．排Na+排K+
B．保Na+保K+
C．排Na+保K+
D．保Na＋排K＋
E．保H＋排Na＋
