与颅咽管瘤特点相符的是（）.
A.为常见的鞍上肿瘤
B.好发于儿童
C.好发于40～60岁患者
D.密度常较均匀
E.蝶鞍扩大
参考答案：A, B, C
—What if I move the picture over there? Do you think it'll look better?
— ________. Let me give you a hand.[ ]
A. I don't agree with you
B. That's right
C. I couldn't agree more
D. With pleasure
关于胆脂瘤描述无误的是（）。
A.为发生在中耳，乳突腔内的肿瘤
B.仅为中耳，乳突腔内的囊性结构
C.囊壁为单层鳞状上皮
D.因囊内含有肿瘤成分而得名
E.囊内充满脱落上皮，角化物及胆固醇结晶
