Which of them is correct? Why?
题目
Which of them is correct? Why?
A car is yravelling on a road during lightning.
Boy:We should leave the car.The case of tjis car is made of metals which are good conductors. We may easily be struck by lightning.
Girl:It is safer to stay inside the car.Electricity will flow to the ground through the mrtal case of the car.
答案
就是说在暴风雨呆在车里是否安全……
其实是不安全的,即使闪电会通过车身,但是高温会对车子造成剧烈的影响,万一火花引燃油箱就更危险了.更何况车轮是橡胶,不是导体,电流不会导入地下的
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
- It may not tast very nice but it is meant to be good for you.此句是什么意思?有哪些句型
- “我站在桥上看风景,看风景的人在楼上看你”怎样把它用到作文里呢?速回,
- 英语演讲稿my college my dream急求~~
- 哪一种金属的沸点最低,多少度?
- 英语翻译
- 根据句子意思,用所给单词的适当形式填空(答案要告诉我为什么)
- 钱钟书的《围城》中的“围城”到底是婚姻还是 指社会事业?
- 一般来说,科学包括哪两个方面
- 高等代数问题:d(x)=f(x)v(x)+g(x)u(x),d(x)是f(x)与g(x)的公因式,怎样证明d(x)是最大公因式
- 一个实心石块,在空气中用弹簧称出示数为10N,当石块完全浸在水中时的示数为6N,求石块的密度.求详细过程
热门考点