肛门直肠触诊可辨别有无病变的器官中不包括（）
A.阑尾
B.输卵管及卵巢
C.男性前列腺、精囊
D.女性子宫及子宫颈
E.乙状结肠
参考答案：E
—Are you free after school?
—Sorry.I've planned to treat a friend of mine to dinner ________ for his help.[ ]
A. in addition
B. in turn
C. in return
D. in total
