气的固摄作用减弱则会出现（）
A.血虚气亏
B.气随血脱
C.气虚血滞
D.气不摄血
E.气虚血少
参考答案：D
下列哪项是急性肾衰竭突出的临床表现（）
A.排尿困难或突然无尿
B.尿量明显减少
C.尿量明显增多
D.尿急、尿痛
E.血中尿素氮进行性升高
It was believed that things would get worse, but _____ it is they are getting better. [ ]
A. before
B. as
C. because
D. after
