who is alway so busy that he has little time for his friends
题目
who is alway so busy that he has little time for his friends
我想知道汉语的意思
答案
(某人)忙得没有和朋友相处的时间.
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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