英语数字表达法
题目
英语数字表达法
19 ,297 ,90,3000,73rd,10000,31st ,8431,55,150000,42nd,18th,100th
答案
nineteen
two hundred and ninety-seven
ninety
three thousand
seventy-third
ten thousand
thirty-first
eight thousand four hundred and thirty-one
fifty-five
one hundred and fifty thousand
foty-second
eighteenth
one hundredth
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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