Mr King asked her children to wear warm clothes to protect them _____ catching old.(用介词填空)
题目
Mr King asked her children to wear warm clothes to protect them _____ catching old.(用介词填空)
答案
against
from
都可以
protect sb.against /from 都表示保护某人以抵御/防止/远离 什么等等.
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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