i was stuck by the limited use the indians made of their natural resources
题目
i was stuck by the limited use the indians made of their natural resources
拆成两句
the speed by which light travels is said to be the maximum in the universe
拆成两句
答案
The indians made use of their natural resources.
I was stuck by their limited use.
the speed is said to be the maximum in the universe
light travels by it.
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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