-How about going for a walk?-____.
题目
-How about going for a walk?-____.
A.I will walk with you at eight B.That is not a bad idea C.Walking is a kind of exercise D.It will take me minutes
答案
B 是个好主意啊
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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