用dive into water造三个英语句子
题目
用dive into water造三个英语句子
答案
The dolphin was swimming when suddenly dived into the water.You'll feel bad if you dive into the water deep.The crocodile was swimming with the monky on his back when he dived into the water.
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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