请大家看看有错吗,he used this reason to express that this matter was real existence
题目
请大家看看有错吗,he used this reason to express that this matter was real existence
答案
He expressed the reason why this matter was real existence.
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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