who was the book written by、这个句子对吗
题目
who was the book written by、这个句子对吗
答案
who was the book written by这个句子没问题,还原为陈述句应该是the book was written by who,who对介词by后的宾语提问.who was the book written by=by whom was the book written.
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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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