晚期肝硬化最严重的并发症()
A．感染
B．上消化道出血
C．功能性肾衰竭
D．肝性脑病
E．电解质和酸碱平衡紊乱
参考答案：D
, and the problem will be worked out..
A．If you have a bit more effort
B．Having a little effort
C．A bit more effort
D．There being a little effort
当下述哪一条成立时，称X→Y为平凡的函数依赖
A．X包含于Y
B．Y包含于X
C．X∩Y=
D．X∩Y≠
