视网膜静脉血管扩张，纡曲色紫者，多为（）。
A．肝经风热上扰
B．痰湿郁遏
C．气滞血瘀
D．肝阳上亢，痰阻血瘀
E．气血不足
参考答案：C
下述哪项不是烧伤休克的无创性监测指标（）
A.尿量
B.经皮氧分压、脉搏和血氧饱和度检测
C.心排血量
D.心率、血压
E.末梢循环
---Jack can't concentrate on his study recently．
--- Yes, that might ____ why he did so badly in the last test．
A．answer for
B．apply for
C．call for
D．account for
