补全对话
题目
补全对话
A:Look!_____are some boats over therer in the lake.
B:_______ _______are there?
A:Let me count.Oh there ______ five.
B:Look,there_____ some children in the boats.
A:How many boys _____ _____?
B:I think there are six.
A:_______ ________ ________ girls?
B:Yes,there are four.
答案
A:Look!There are some boats over therer in the lake.B:How many are there?A:Let me count.Oh there are five.B:Look,there are some children in the boats.A:How many boys are there?B:I think there are six....
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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