are all the students back at school?is there a new building?
题目
are all the students back at school?is there a new building?
how many reading rooms are there?
where is the table tennis room?
请在分别回答出这些问题,
请分别回答出这些问题,
答案
所有学生都回来了么?那有一座新大楼么?有多少阅览室?台球室在哪?
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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