we have just received(?)that we must hand in all our baggage in no time
题目
we have just received(?)that we must hand in all our baggage in no time
答案
We have just received a notice that we must hand in all our baggages in no time.我们刚刚收到要我们立刻提交全部行李的通知.
notice是通告,
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．
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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