peter is never late for the first class in the afternoon 改为同义句 peter never_____ ______ _____ the fir
题目
peter is never late for the first class in the afternoon 改为同义句 peter never_____ ______ _____ the first class in the afternoon
还有一题：please get there early 改为否定句 please _____ ______ there early
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答案
[1] arrive late for [2] don’t get 自己做的,不知道对不对
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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