Canada’s immigration policy
题目
Canada’s immigration policy
求加拿大现行immigration policy
答案
Skilled workers and professionalsSkilled workers have education,work experience,knowledge of English or French,and other abilities that will help them to establish themselves successfully as permanent...
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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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