找错并改正.she is learning english as the second language.
题目
找错并改正.she is learning english as the second language.
答案
首字母大写 English大写 is learning 改为：learns
She learns English as the second language.
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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