有木有关于五一劳动节的英语日记,11
题目
有木有关于五一劳动节的英语日记,11
答案
写日记一般用过去时. 下面一篇供你参考一下. Today is May Day. I am very happy. I went to a park with my parents in the morning . We went there by bus. The bus was full of people. There wer...
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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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