why did your cousin walk to the train station yesterday morning改为同义句
题目
why did your cousin walk to the train station yesterday morning改为同义句
答案
why did your cousin go to the train station on foot yesterday morning
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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