Didn’t it ever_______ to them that they would be punished?
题目
Didn’t it ever_______ to them that they would be punished?
A realize B strike C hit D occur
答案
D
occur to在...心里出现
Didn't it occur to you that he was lying?你当时没想到他在撒谎吗?
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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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