1.It was wise of you to return the wallet to the owner.
题目
1.It was wise of you to return the wallet to the owner.
2.He is not tall enough to reach the books on the top of the shelf.
3.He prefers apples to bananas.
4.What kind of sports do you like
5.What happened to you?
答案
1. you have returned the wallet, which is a right desicion.
2. the book locates too high on the top of the shelf for him to reach.
3. he likes apples more than bananas
4. do you like playing basketball, football or any other sports?
5. what's up?
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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