Another nuclear power station will be built to guarantee a ___ (steay,specific flexible,casual) sipp
题目
Another nuclear power station will be built to guarantee a ___ (steay,specific flexible,casual) sipply of electricity to this city.选择并说明
答案
本题可能有误,原题应该是：Another nuclear power station will be built to guarantee a ___ (steady,specific flexible,casual) supply of electricity to this city.应选steady
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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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