肝性脑病的神经精神症状有（）。
A.轻微性格和行为改变
B.睡眠障碍和行为失常
C.精神错乱
D.昏迷
E.以上都有
参考答案：E
When you read, don't _____ every new word in the dictionary. Try to guess its meaning. [ ]
A. look up
B. work out
C. make up
D. give up
何谓癌肉瘤？
