英语题(小学五年级暑假乐园)2
题目
英语题(小学五年级暑假乐园)2
改错
There are some air on the moon.
改错
The sun is up and you are still in bed.
答案
There is no air on the moon.
The sun is up but you are still in bed.
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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