这条河是那条河的三倍用英语怎么说
题目
这条河是那条河的三倍用英语怎么说
答案
The river is three times longer/wider than that one.The river is twice/two times longer/wider than that one.the tiver is three times the length/wide of that one
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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