仁爱英语八年级下册40页作文(Project)
题目
仁爱英语八年级下册40页作文(Project)
答案
One day, a boy went camping with his friends. They came to a forest. Suddenly, he saw a goat. He ran after it and wanted to see it carefully. However, he couldn’t catch the goat. So he intended to go back, but he found that he has gotten lost. Luckily, a person helped him get back.
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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