Two farmers were on their w________ home one evening after a day’s hard work.
题目
Two farmers were on their w________ home one evening after a day’s hard work.
They were tired.They happened to look up at the sky and saw a b_________ cloud overhead.
“Ah!” sad one farmer,“tomorrow we shall have r_______ and the rice will grow well.” The second answered,“Nonsense(胡说),the rain will only kill the crops(庄稼).” Slo they began to quarrel.Just then a third farmer came along and a________ them why they were quarrelling.B_______ of them explained about the black cloud.
“What cloud?” asked the third farmer.They all looked at the sky.The cloud was no longer there.
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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