____foreigners come to visit this museum every year
题目
____foreigners come to visit this museum every year
填several thousand of
还是several thousand
为什么
还有如果是five thousands 呢要不要加of
答案
several thousand
five thousand不是five thousands ,thousand后面加S有of,5000是
five thousands
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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