介词OF和FROM的区别和用法?
题目
介词OF和FROM的区别和用法?
答案
Sametimes they are interchangable (same).
Sometimes they are not interchangable (different).
Let's see several examples.
interchangable (same):
You can choose one of them to be your asistant.
You can choose one from them to be your asistant.
not interchangable (different):
You can choose one of my guitars for your performance.
You can choose one guitar from my collection for your performance.
You can say:
"The girl from a countryside...".
But you cannot say:
"The girl of a countryside...".
You can say:
"The Great Wall is the proud of Chinese".
But you cannot say:
"The Great Wall is the proud from Chinese".
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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