连词成句 were what when did you use to they children parents do
题目
连词成句 were what when did you use to they children parents do
you该成your
答案
What did your parents use to do when they were children?窃以为楼主把your打成you了.
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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