祈使句造句
题目
祈使句造句
用英文,五个肯定五个否定
答案
肯定：1 Give this one to me.2 Open your books.3 Be quickly.4 Hurry up.5 Tell me how to do it.否定：1 Don't open the window.2 You can't swim in the river.3 Don't give him this toy.4 You can't watch the...
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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