often as
题目
often as
答案
往往usually,mostly,in most cases
as often as not:(more often that not) very often
时常
As often as not the buses are late on foggy days.
每遇多雾天气,公共汽车往往脱班.
As often as not he forgets his homework.
他往往忘了做家庭作业.
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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