That man may be a thief.Be careful ____ him.
题目
That man may be a thief.Be careful ____ him.
A,from B.to C.at D.of
答案
That man may be a thief.Be careful ____ him.
选D
那个男人是一个小偷,请注意
be careful to him
用介词ofof.
to be careful of sth是
--当心,注意的意思
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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