脾切除术对哪种疾病效果最佳（）

A.再生障碍性贫血

B.慢性粒细胞白血病

C.慢性淋巴细胞白血病

D.阵发性睡眠性血红蛋白尿

E.遗传性球形红细胞增多症

I'd rather have a room of my own, however small it is, than ______ a room with someone else.[ ]

A. to share  

B. to have shared

C. share  

D. sharing