The soldiers stopped working when all the children were saved保持原句意思
题目
The soldiers stopped working when all the children were saved保持原句意思
答案
The soldiers didn't stop working until all the children were saved.
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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