英语翻译
题目
英语翻译
In the future your automobile will run on water instead of gas!You will be able to buy a supercomputer that fits in your pocket!You might even drive a flying car!
Not all past predictions have been proven wrong.A few of them have been surprisingly accurate.Some great thinkers predicted the arrival of the credit card,the fax machine and even the interest-years before they happened.But for each prediction that has come true,some others have missed by a mile.Many of these predictions didn’t consider how people would want to use the technology.Or if people really needed it in their lives or not.Let’s look at some predictions from the not-too-distant past.Robot Helpers
Where’s the robot in my kitchen?Nowhere,of course.And he’s probably not coming anything soon.Robots do exit today,but mostly in factories and other working environments.
Back in the 1950s,however,people said that by now personal robots would be in most people’s home.So why hasn’t happened?Maybe because r
答案
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点
- 朱熹在《观书有感》中运用比喻来说明只有平时多积累才能写出好文章的道理的诗句是?
- 一次闪电发生后经过4s听到雷声,雷声发生在多远的地方?(声速为340m/s,光速为300000Km/s)
- A={y|y=x^2-2x+2,x属于R},B{x|y=√x^2-x-2},全集U=R,求(CuA)∩ (CuB)
- 通过这次讨论,一些同学赞成,他们认为太空探险能够使我们获得更多的新的知识,我们能够更好的认识宇宙,从太空取得新资源.也可能扩大我们生活的空间.
- 已知圆C (x-1)^2+(y-2)^2=2,点P(2,-1).过P作圆C的切线PA,PB,A,B为切点 求切线长|PA| 求直线AB的方程
- 已知一段mRNA含有30个碱基,其中A和G有12个,转录该段mRNA的DNA分子中应有C和T的个数是( ) A.12 B.24 C.18 D.30
- 工作总量一定,工作效率和工作时间 成正比例还是成反比例
- 400K,101.3kPa时,1.5L某烃蒸气,能在aL氧气中完全燃烧,体积增大至(a+3)L,(同温同压下测定) (1)该烃在组成上必须满足的条件是_. (2)当a=10L时,该烃可能的分子式是_.
- 甲是乙的80%,则甲比乙多百分之几?
- 电流通过导体产生的热量的电流有关系吗