万圣节的英文介绍谢谢!
题目
万圣节的英文介绍谢谢!
介绍来的
答案
Halloween
Halloween is an autumn holiday that Americans celebrate every year.It means "holy evening," and it comes every October 31,the evening before All Saints' Day.However,it is not really a church holiday,it is a holiday for children mainly.
Every autumn,when the vegetables are ready to eat,children pick large orange pumpkins.Then they cut faces in the pumpkins and put a burning candle inside.It looks as if there were a person looking out of the pumpkin!These lights are called jack-o'-lanterns,which means "Jack of the lantern".
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
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