糖尿病患者失明的主要原因是（）
A.脑血管意外
B.白内障
C.视网膜病变
D.青光眼
E.虹膜睫状体病变
参考答案：C
The information on the Internet gets around much more rapidly than _____ in the newspaper. [ ]
A. it
B. those
C. one
D. that
简述急性心力衰竭的治疗
