
第九章 集合论测验
Authored by 蔡佩芸 蔡佩芸
Mathematics
8th Grade
Used 15+ times

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30 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
设 , ,求 A\B
{ 1,3,6,7,11 }
{ 2,4,5,10 }
{ 8,9 }
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
设 A = {x|x是9的因数},问下列哪些关系是正确的?
3.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
请列出集合X所有的元素(小到大)。
*只接受英文的逗号(,)*
(a)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
求 。
4
3
1
0
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
图中所示,各区域内的数表示该区域所含有的元素数量。如果 ,求 。
7
33
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
集合Q={ x|x是小于 7 的正偶数 } 有多少个子集?
3
6
8
12
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A ={x| }
请问集合A是有限集还是无限集?如果是有限集,写出该集合的基数。
无限集
有限集,
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