three hundred of the students are on the playground 个正确
题目
three hundred of the students are on the playground 个正确
答案
Three hundred students are on the playground.
三百个学生
Three hundred of the students are on the playground.
所有学生中的三百人
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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