In a few days , All chinese people will mourn for mudslide victims in Zhouqu county, Gansu province
题目
In a few days , All chinese people will mourn for mudslide victims in Zhouqu county, Gansu province
Over the years, Chinese nature disaster happened high frequency. It is testing Chinese government and people how to challenge.
答案
这段时间,全国人民都为甘肃省舟曲县的泥石流灾难而悲伤.几年以来,中国自然灾害频繁发生,这充分考验了中国政府和中国人民接受挑战
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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