Scientists say life will be very different in 2050.

    First，there will be no TV channels（频道）in 2050.People will choose a program from a computer and watch it on TV.In 2050，we will get information from the computers only.

    Second，water will be a big problem in 2050.In many places，people won't have water to drink.

    Third，cars will use new and clean fuels and they will go very fast.There will be a computer in every car.And the computers will control the cars and there won't be any accidents（事故）.

爱玩是我们的天性，作为青少年学生我们怎样才能不玩过了头？

“互联网+”就是“互联网+各个传统行业”，让互联网与传统行业进行深度融合，创造新的发展生态。近年来在政府的引领下，浙江农村出现了“互联网+”新的运营模式。读如图，完成下列各题。

定义在$\left(0,+\infty \right)$上的可导函数$f\left(x\right)$满足：$x·f^{\text{'}}\left(x\right)<f\left(x\right)$且$f\left(1\right)=0$,则$\frac{f\left(x\right)}{x}<0$的解集为（  ）