There are more than thirtystudents in the class.改为同义句.
题目
There are more than thirtystudents in the class.改为同义句.
There are____thirti students in the class.
是thirty。打错了
答案
There are【over】thirty students in the class.
over =more than 多于,超过
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．
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