将下列单数句变为复数句 1,That is a jacket 2,She is anic
题目
将下列单数句变为复数句 1,That is a jacket 2,She is anic
将下列单数句变为复数句
1,That is a jacket
2,She is anice girl
3,What color is it
4,Is this your friend
答案
1.Those are jacket.2,They are anice girls 3,What color are they,4.Are these your friends,
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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