与活动有关的疼痛和血尿，首先应考虑（）
A.泌尿系感染
B.泌尿系肿瘤
C.泌尿系畸形
D.泌尿系结石
E.泌尿系异物
参考答案：D
Mike didn't ________ his parents and friends _ , he won the first in the competion. [ ]
A. let; down
B. make; happy
C. keep; clean
D. make; down
面见黑色，口味咸，脉象沉，病多在 ( )
A．肝B．心C．脾D．肺E．肾
