2025年教学资料:第1章 集合(单元测试)(原卷版)
第1章集合(单元测试)一、单项选择题(在每小题给出的四个选项中,只有一项是符合题目要求的)1.下列各组对象不能构成集合的是( )A.上课迟到的学生B.2023年高考数学难题C.所有有理数D.小于的正整数 2.若,则集合P中元素的个数是( )A.1B.2C.3D.4 3.下列所给关系正确的个数是( )①;②;③;④.A.1B.2C.3D.4 4. 集合用列举法可表示为( )A.B.C.D. 5.下列关系正确的是( )A.B.C.D. 6.已知集合,,若,则等于( )A.或3B.0或C.3D. 7.设集合,则集合的子集个数为( )A.6B.4C.2D.1 8...
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