初三英语1单元6页3b作文怎么写?急用
题目
初三英语1单元6页3b作文怎么写?急用
答案
I know it isn’t easy to learn English well,but I have some ideas that may help.You said you couldn’t understand people who talked fast.Well,you can try to listen for the most important words,not eve...
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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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