china took part in the olmpics for the first time in 1952改为同义句
题目
china took part in the olmpics for the first time in 1952改为同义句
（）（） the first time for china ()take part in the olmpics in 1952
答案
It was to
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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