MS病变的部位有（）
A.大脑半球白质
B.脑干
C.小脑
D.脊髓
E.周围神经
参考答案：A, B, C, D
I don't have so much money. It's too_________.[ ]
A. cheap
B. lot
C. expensive
D. much
何谓商业诽谤？商业诽谤包括几种形式？
