求翻译：He was believed to have remained dead for three days and then to have come back to life.
题目
求翻译：He was believed to have remained dead for three days and then to have come back to life.
答案
翻译：他被认为已经死了3天然后又活过来了.
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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