our school year starts in september对划线部分提为in september we often go swimming for half an hour
题目
our school year starts in september对划线部分提为in september we often go swimming for half an hour
对划线部分提问,环线部分为for half an hour.
my mother never eats in the KFC or McDonalds.对划线部分提问,环线部分为never
l don't like any of the games.改为同义句
or,sunday,seldom,TV,watches,Tom,on,saturday(连词成句）
答案
When does your school year start?
How long do you often go swimming for?
How often does your mother eat in the KFC or McDonalds?
I like none of the games.
Tom seldom watches TV on Saturday or Sunday.
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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