I have a dog.It is s_and l_.It has l_hair.Touch it.It is s_.It can r_.It can j_.I l_it very much.
题目
I have a dog.It is s_and l_.It has l_hair.Touch it.It is s_.It can r_.It can j_.I l_it very much.
答案
I have a dog. It is small(strong) and lovely(large).It has long hair.Touch it.It is soft.It can run.It can jump.I love it very much.
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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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