Engilsh,have,school,your,do,a,contest,you,at(?)
题目
Engilsh,have,school,your,do,a,contest,you,at(?)
答案
Do you have a contest at your English school?
(如果是an 的话,就应该是Do you have an English contest at your school?)
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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