肝硬化特征性病理表现是
A．炎细胞浸润
B．肝细胞浊肿变性
C．肝细胞坏死
D．肝细胞脂肪变性
E．假小叶形成
参考答案：E
控制方框图中的信号传递可以是双向的。（）
The teacher wanted to know_______. [ ]
A. when did you come here
B. when you came here
C. when do you come here
D. when you come here
