My sister ofen goes to the store to buy some things.
题目
My sister ofen goes to the store to buy some things.
My sister ofen goes to the store to buy some things
My sister ofen goes to the store to buys some things.
那一句对?
答案
My sister often goes to the store to buy some things
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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