题目

化简:×,然后选择一个使分式有意义的数代入求值. 答案:解:原式=•=, 当x=0时,原式=. —What an amazing film! It’s the most interesting film I’ve ever seen. —But I’m sure it won’t interest ________. A. somebody  B. anybody C. everybody  D. nobody
数学 试题推荐