男性患者，58岁。近半年来反复出现腹泻，每日约4次，便呈糊状，无脓血，偶有腹泻与便秘相交替。查体：腹软，右下腹轻压痛。辅助检查：钡灌肠示：回盲部钡剂充盈缺损。最不可能的诊断是（）。

A.结肠癌

B.克罗恩病

C.肠结核

D.溃疡性结肠炎

E.血吸虫性肉芽肿

Xiaoming and his brother are in the same school. And ______ like sports very much.[ ]

A. they

B. them

C. their