What does Mark usually do afterschool?He just plays computer games__,doing noting eles.(A,once upon
题目
What does Mark usually do afterschool?He just plays computer games__,doing noting eles.(A,once upon
A,once upon a time B,more or more C,hour after hour D,from now on选哪个?解析下,
答案
选C
一个小时接一个小时
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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