you must take exercise every day to preserve your health(改为compound sentence)
题目
you must take exercise every day to preserve your health(改为compound sentence)
求达人相助也
答案
You must take exercise every day to preserve your health.(改为compound sentence)You must take exercise every day so that you can preserve your health.你必须每天锻炼,以便能保持健康状态.把不定式to do改...
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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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