肝硬化最常见的并发症是()。
A.上消化道出血
B.感染
C.肝性脑病
D.肝肾综合症
E.腹水
参考答案:A
What happens to the pulling power of a winch when retrieving wire rope?()
A.It increases
B.It decreases
C.It remains the same
D.It fluctuates,depending on the gearing system