We are just informed that the press conference is about to be delayed?这句话这样写有语法错误吗
题目
We are just informed that the press conference is about to be delayed?这句话这样写有语法错误吗
答案
很别扭
we have just been informed that the press conference has been put off.
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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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