A girl complained to her father ahout hard life.完形填空答案
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A girl complained to her father ahout hard life.完形填空答案
答案
A girl complained to her father about her bad life,.She did not know what to do and wanted to give up.She felt tired and tired after fighting and fighting.One project had been finished and the oth...
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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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