what was the date yesterday?A It was on 29th May,2010.B It was Tuesday.C It was June 2nd
题目
what was the date yesterday?A It was on 29th May,2010.B It was Tuesday.C It was June 2nd
选哪个
答案
C 原句问的是日期,所以选c
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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