英语问题把下列句子改为复数形式
题目
英语问题把下列句子改为复数形式
1.what"s this?
2.what color is this blouse?
3.his father is a teacher.
4.is it your salad?
5.where is her computer?
6.that isn't CD .
答案
1.What are they?
2.What color are these blouses?
3.Their father is a teacher.
4.Are these your salads?
5.Where are her computers?
6.They are not CDs.
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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