And the days are longer than winter,the nights are shouter than winter.
题目
And the days are longer than winter,the nights are shouter than winter.
答案
And the days are longer than those in the winter,while the nights are shorter than those in the winter.
the days 与winter不是同类词,前面要加that/those
两个句子间要加联结词
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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