you can hardly imagine what grate difficulty we had ding the work
题目
you can hardly imagine what grate difficulty we had ding the work
为什么用what 代指哪两方面,一个是imagine 后的宾语 另一个呢?
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答案
what 引导的是一个宾语从句,做imagiine的宾语,同时在这个从句中what又是做主语what difficulty we had (in) doing the work
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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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