we should never stand still and think the door before us will close forever .we should find the key
题目
we should never stand still and think the door before us will close forever .we should find the key
we should never stand still and think the door before us will close forever .we should find the key to door ,or try to find another way .
答案
在我们将永远关闭这扇门之前我们不应总是静立和思考.我们应当寻找这扇门的钥匙,或者尝试寻找另外一条路.
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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