3. If you could visit any country ,where would you go ?why?
题目
3. If you could visit any country ,where would you go ?why?
答案
it's very difficult to choose just one country,because every country has its own special scenery.if i have enough money and time ,i prefer spending much of my time to travel all around the world.i wil...
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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.
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