There is a big blackboard _________the classroom.
题目
There is a big blackboard _________the classroom.
A .in the front B.in front of C.in the front of.
最好加些in front of 与in the front of的区别.
答案
There is a big blackboard _________the classroom.
A .in the front B.in front of C.in the front of.
本题应选C
in the front of = ahead of 是在一个物体内部的前面
in front of 是在一个物体的前面
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.
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