遗传性共济失调的病理改变的特征（）
A.共济失调表现
B.小脑损害
C.世代相传的遗传背景
D.脑干损害
E.大脑损害
参考答案：A, B, C, D
— You are smoking at work again!
— Sorry! I promise this is the last time I _____. [ ]
A. have smoked
B. had smoked
C. smoke
D. am smoking
多发性硬化最常见的眼部表现是（）
A.视神经萎缩
B.眼肌麻痹
C.球后视神经炎
D.Horner综合征
E.上睑下垂
