濒临灭绝的动物用英语
题目
濒临灭绝的动物用英语
Do you know any endangered wildlife in china that is being protected
中国的啊
答案
More and more animals in China have been classified as endangered species because of effects of natural disasters and human activities.Most of the endangered species can be found only at reserves.The ...
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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