用leave for改为同义句
题目
用leave for改为同义句
Our manager is leaving Hong Kong next Sunday and he is going to Canada by plane.
答案
Our manager is leaving for Canada from Hong Kong by plane next Sunday.
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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