he started the engine, pulled away from the side of the street and drove down翻译
题目
he started the engine, pulled away from the side of the street and drove down翻译
答案
he started the engine,pulled away from the side of the street and drove down
他发动了引擎开向街道的那一边,
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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