急性肝衰竭最常见的病因有（）
A.药物、化学物质或毒物
B.肝豆状核变性
C.肝炎病毒感染
D.急性妊娠脂肪肝
参考答案：C
—Would you like to go out for a walk with us?
— ,but I must finish my homework first. [ ]
A. That's all right
B. I'd love to
C. Yes, I do
D. No, I don't
报纸产生发展的三个阶段。
