把下列句子改成一般疑问句,1、3、5句肯定回答,2、4、6句否定回答 1.I can sweep the floor.
题目
把下列句子改成一般疑问句,1、3、5句肯定回答,2、4、6句否定回答 1.I can sweep the floor.
2.This is a computer.
3.They are drinking water.
4.I took many pictures in the holiday.
5.Bill goes to work by subway.
6.I often climb mountains on the weekends.
答案
1.Can you sweep the floor?Yes,I can.
2.Is this a computer?No,it isn't.
3.Are they drinking water?Yes,they are.
4.Did you take many pictures in the holiday?No,I didn't.
5.Does Bill go to work by subway?Yes,he does.
6.Do you often climb mountains on the weekends?No,I don't.
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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