Read the conversation and write down the questions and answers.
题目
Read the conversation and write down the questions and answers.
---Hi,Don!
---Hello,Andy!
---What's that in your hand?
---It's a letter from my pen pal.
---Really?Where is your pen pal from?
---He's from Singapore.Do you have a pen pal,too?
---No,I don't.But my brother,Matt has one.
---Where's his pen pal from?
---He's from France.
1.---__________________________?
---He's from Singapore.
2.---Does Andy have a pen pal?
---___________________________.
3.---Where's Matt's pen pal from?
---___________________________.
答案
1 Where's Don's pen pal from
2 no
3 France
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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