某班选派6人参加两项公益活动,每项活动最多安排4人,则不同的安排方法有( ) A 发布时间:2017-05-14 19:22 │ 来源:www.tikuol.com 题型:选择题 问题: 某班选派6人参加两项公益活动,每项活动最多安排4人,则不同的安排方法有( )A.50种B.70种C.35种D.55种
题型:选择题 — Have you read the book Oliver Twist? — Who ____ it? [ ]A. writes B. wrote C. has written D. had written 查看答案