嘲笑残疾人是不礼貌的．
题目
嘲笑残疾人是不礼貌的．
It is not____ to laugh___ the disabied people.
与朋友和谐相处使我们感到很愉快．
We___ ____ _____to get on well with our friends.
.她虽然小,却可以自己挣钱．
She can make money herslf ________ _________she is very young.
答案
It is not polite to laugh at the disabied people.
We are very happy to get on well with our friends.
She can make money herslf even though she is very young.
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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