已知，则“”是“”成立的（）_刷题宝

题干

已知

，则“

”是“

”成立的（）

A：充分不必要条件

B：必要不充分条件

C：充要条件

D：既不充分也不必要条件

上一题下一题 0.0难度选择题更新时间:2019-03-08 11:00:51

答案(点此获取答案解析）

A

同类题1

It was a pity that the great writer died his works unfinished.

同类题2

根据材料，选择正确答案。

In Sunshine Town if you want to go to the cinema or theatre, look at the following first.

Sunshine Theatre (PLAYS ONLY)

Open: 11:30 a.m.-7:30 p.m. from Monday to Sunday

Ticket price: Member price:￥30 Usual price:￥40 Student:￥15

Telephone: 010-6697 3219

Sunshine Cinema

Open: 9:00 a.m.-8:00 p.m. Monday to Sunday

Ticket price:￥40 (half price on Tuesday)

Telephone: 010-6699 9977; 010-6699 6644

Sunshine Modern Cinema

Open: 10:30 a.m.-11:30 p.m. from Monday to Friday

10:00 a.m.-11:30 p.m. Saturday and Sunday

Ticket price: Adults:￥50 Children (under 14):￥10

The old (over 60):￥20 The young (15-18):￥20

Telephone: 010-6699 3834

同类题3

在使用显微镜时，要想使视野1变成视野2，应（）

同类题4

下列事实不能用勒夏特列原理解释的是

同类题5

105.2309小数点右边第二位是____位，表示____；小数点右边第四位是____位，表示____；小数点左边第三位是____位，表示____；小数点左边第一位是____位，表示____．

小学学科试题库

初中学科试题库

高中学科试题库