求这几个频率副词的排序
题目
求这几个频率副词的排序
always,usually,often,sometimes,seldom,hardy ever,occasionally,never,frequently ,all the time,rarely,at times
答案
never,hardy ever,rarely,seldom,at times,occasionally,sometimes,usually,often,frequently,always,all the time
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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