恶性淋巴瘤免疫组织化学染色可以呈阳性表达的是（）
A.S-100
B.NSE
C.GFAP
D.MBP
E.EMA
参考答案：E
—— Which would you prefer, black coffee or white coffee？
——________.
A．Yes, very much
B．I prefer the former to the latter.
C．What about you?
D．At your service
下列哪项不是家鸽与飞行生活相适应的特点（ ）
A．体表被覆羽毛
B．前肢变成翼
C．体内有气囊
D．直肠发达
