these alone took sixteenth months to build 是什么样的结构呢?
题目
these alone took sixteenth months to build 是什么样的结构呢?
答案
(these),alone took sixteenth months to build 句型 it takes(took) sb.sometime to do something “花费.时间,做.” 这些只用了16个月建设成了.
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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