集合部分的内容,由于其思想与方法均与初中所学知识有所不同,因此,这部分内容往往有很多同学会犯这样或那样的错误．下面我们举例剖析同学们最容易犯的几个错误． The content of the collection part is different from the knowledge learned in junior middle school because of its ideas and methods. Therefore, there are often many classmates who make such mistakes. Here are some examples of the most common mistakes students make.