Write two comparisons about two topics.Write true facts.
题目
Write two comparisons about two topics.Write true facts.
e.g.Two rivers:the Yangtze River and the Amazon River
The Yangtze River is almost as long as the Amazon River.
The Amazon is longer than the Yangtze,but the Yangtze River is the longest river in China.
Two cities:___________ and ___________
1._______________________________________________________________.
2._______________________________________________________________.
Two animals:___________ and ___________
1.______________________________________________________________.
2.______________________________________________________________.
答案
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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