用英语解释sunday,modle,expiain
题目
用英语解释sunday,modle,expiain
答案
Sun‧day [uncountable and countable]1 written abbreviation Sun.the day between Saturday and Monday短语:on Sunday 例句:We're going to a match on Sunday.What are you doing Sunday?American English...
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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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