肝硬化常见并发症包括()。
A.腹水
B.肝肾综合征
C.败血症
D.上消化道出血
E.肝性脑病
参考答案:B, C, D, E
There ______ many bikes in the streets ten years ago. [ ]
A. was
B. is
C. are
D. were
以下哪个选项体现了商品的相关性()
A.啤酒加尿布
B.女装加化妆品
C.小食品加儿童玩具
D.以上均是