设x∈R,则“x>1”是“x2>x”的 [ ] A.充分不必要条件 B.必要不充 发布时间:2017-04-17 07:32 │ 来源:www.tikuol.com 题型:选择题 问题: 设x∈R,则“x>1”是“x2>x”的 [ ]A.充分不必要条件 B.必要不充分条件 C.充分必要条件 D.既不充分又不必要条件
题型:选择题 They considered ______a computer, which was considered ______a great help in their work.A.to buy; to beB.buying; being C.to buy; beingD.buying; to be 查看答案