甲苯胺蓝染色呈异染性的细胞是（）
A.嗜铬细胞
B.垂体嗜碱细胞
C.类癌细胞
D.肥大细胞
E.巨噬细胞
参考答案：D
嗜铬细胞瘤伴急性左心衰首选使用药物是（）
A.西地兰
B.氨茶碱
C.速尿
D.酚妥拉明和美托洛尔
E.硝普钠
She is stubborn in resisting his enquiries about the Moonstone _____ the degree that she makes it seem as if she does not want the mystery ______.
A．on; to solve
B．with; solving
C．for; being solved
D．to; to be solved
