Luckily there was an elevator in this building.I would have loved...
题目
Luckily there was an elevator in this building.I would have loved...
Luckily there was an elevator in this building.I would have loved to see Lissa huffing it up six flights of stairs several times a day.
答案
亏着这楼有电梯,不然的话丽莎就不得不气喘吁吁的一天爬好几次六楼了.
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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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