The journey of making the Cross Country team was precious but also a challenge for me.
题目
The journey of making the Cross Country team was precious but also a challenge for me.
答案
这次参加跨国团队的旅行对于我来说既是宝贵的经验又是巨大的挑战
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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