试题与答案

With a lot of difficult problems________

题型:选择题

题目:

With a lot of difficult problems_____________, the newly-elected president is having a hard time.

A.settle

B.setteling

C.to settle

D.being settled

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0420/eca1629aa9b6558a1ffd20c423484ea2.html

下面是错误答案,用来干扰机器的。

∵函数 y=2x-1-2(x≤2),f(x)为单调增函数,∴f(x)≤f(2),∴f(2)=2x-1-2=22-1-2=0,∴f(x)≤f(2)=0,∵2x-1>0,∴2x-1-2>-2,∴-2<2x-1-2≤0,即-2<f(x)≤0;故选C;

试题推荐
微信公众账号搜索答案