短文改错 课时达标练与测英语七上
题目
短文改错 课时达标练与测英语七上
There is a library in our school.Its behind our classroom.It is on the first floor.It is not big and it is very nice.
there are a lots of books in the library.some are in Chinese and some are in English,and the rest is in many different and kind of languages.I like reading very much.my classmates and i often go there to lend books.the librarian is very kind with us.she works very hard.we all say that she is a well moman.there is a very big reading room in our library,too.everyday many students go there and do some reading.
答案
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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