爱护动物的英语作文
题目
爱护动物的英语作文
答案
In our country, the number of wild animals is becoming smaller and smaller. Some of them are even dying outThe dangerous methods we human being has taken are as follows: We have been cutting the trees...
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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