本课配套习题挑战模式1/5
单选题
难度系数:
1.设集合A={1,2},B={2,3},则A∪B等于( )
A: {1,2,2,3} |
B: {2} |
C:{1,2,3} |
D: {1} |
一次做对,真牛!
+5奖励规则>
- 提示1:IOaxgumbhuWQiOeahOW5tumbhu+8jOWwseaYr+aKiui/meS4pOS4qumbhuWQiOS4reeahOWFg+e0oOaUvuWcqOS4gOS4qumbhuWQiOS4re+8jOS9huaYr+imgeWBmuWIsOWFg+e0oOS4jemHjeWkje+8gQ==
- 答案:Qw==
6Kej5p6Q77ya5rGC6ZuG5ZCI55qE5bm26ZuG77yM5bCx5piv5oqK6L+Z5Lik5Liq6ZuG5ZCI5Lit55qE5YWD57Sg5pS+5Zyo5LiA5Liq6ZuG5ZCI5Lit77yM5L2G5piv6KaB5YGa5Yiw5YWD57Sg5LiN6YeN5aSN77yBPGk+QTwvaT7iiKo8aT5CPC9pPjxpPj08L2k+ezEsMiwzfTxicj7mlYXpgIlD
本课配套习题挑战模式2/5
单选题
难度系数:
2.设集合A={1,2},B={2,3},则A∩B等于( )
A: {1,2,2,3} |
B: {2} |
C: {1,2,3} |
D: {3} |
一次做对,真牛!
+5奖励规则>
- 提示1:IOaxgumbhuWQiOeahOS6pOmbhu+8jOWwseaYr+aJvuS4pOS4qumbhuWQiOeahOWFrOWFseWFg+e0oO+8geWFseacieeahOWFg+e0oOaYrzLvvIE=
- 答案:Qg==
6Kej5p6Q77ya5rGC6ZuG5ZCI55qE5Lqk6ZuG77yM5bCx5piv5om+5Lik5Liq6ZuG5ZCI55qE5YWs5YWx5YWD57Sg77yB5YWx5pyJ55qE5YWD57Sg5pivMu+8geWGmeaIkOmbhuWQiOeahOW9ouW8j+WwseaYr3syfeaVhemAiUI=
本课配套习题挑战模式3/5
单选题
难度系数:
3.已知集合A={0,1,2,3,4,5},B={1,3,6,9},C={3,7,8},则(A∩B)∪C等于( )
A: {0,1,2,6,8} |
B: {3,7,8} |
C: {1,3,7,8} |
D: {1,3,6,7,8} |
一次做对,真牛!
+5奖励规则>
- 提示1:IOeUseS6jumbhuWQiEHvvJ17MCwxLDIsMyw0LDV977yMQu+8nXsxLDMsNiw5fe+8jEPvvJ17Myw3LDh977yM5YiZ57uT5ZCI5Lqk6ZuG5ZKM5bm26ZuGDQrlrprkuYnlj6/nn6XvvIxB4oipQiA9ezEsM30=
- 提示2:IOWImShB4oipQiniiKpDPXsxLDMsNyw4fe+8jOaVhemAiUM=
- 答案:Qw==
6Kej5p6Q77ya55Sx5LqO6ZuG5ZCIQe+8nXswLDEsMiwzLDQsNX3vvIxC77ydezEsMyw2LDl977yMQ++8nXszLDcsOH3vvIzliJnnu5PlkIjkuqTpm4blkozlubbpm4Yg5a6a5LmJ5Y+v55+l77yMQeKIqUIgPXsxLDN9LOWImShB4oipQiniiKpDPXsxLDMsNyw4fe+8jOaVhemAiUM=
本课配套习题挑战模式4/5
单选题
难度系数:
4.若全集U={1,2,3,4,5,6},M={2,3},N={1,4},则集合{5,6}等于( )
A: |
B: |
C: (∁UM)∪(∁UN) |
D: (∁UM)∩(∁UN) |
一次做对,真牛!
+5奖励规则>
- 提示1:IOKItSYjODcwNTs8aT48c3ViPlU8L3N1Yj48L2k+PGk+TTwvaT7vvJ17MSw0LDUsNn3vvIwmIzg3MDU7PGk+PHN1Yj5VPC9zdWI+PC9pPjxpPk48L2k+77ydezIsMyw1LDZ977yM4oi0KCYjODcwNTs8aT48c3ViPlU8L3N1Yj48L2k+PGk+TTwvaT4p4oipKCYjODcwNTs8aT48c3ViPlU8L3N1Yj48L2k+PGk+TjwvaT4p77ydezUsNn3vvIziiLTpgIlELg==
- 答案:RA==
6Kej5p6Q77ya4oi1JiM4NzA1OzxpPjxzdWI+VTwvc3ViPjwvaT48aT5NPC9pPu+8nXsxLDQsNSw2fe+8jCYjODcwNTs8aT48c3ViPlU8L3N1Yj48L2k+PGk+TjwvaT7vvJ17MiwzLDUsNn3vvIziiLQoJiM4NzA1OzxpPjxzdWI+VTwvc3ViPjwvaT48aT5NPC9pPiniiKkoJiM4NzA1OzxpPjxzdWI+VTwvc3ViPjwvaT48aT5OPC9pPinvvJ17NSw2fe+8jOKItOmAiUQuIA==
本课配套习题挑战模式5/5
单选题
难度系数:
5.已知全集U=R,集合A={x|-2≤x≤3},B={x|x<-1或x>4},那么集合A∩(∁UB)等于( )
A: {x|-2≤x<4} |
B: {x|x≤3或x≥4} |
C: {x|-2≤x<-1} |
D: {x|-1≤x≤3} |
一次做对,真牛!
+5奖励规则>
- 提示1:ICYjODcwNTs8aT48c3ViPlU8L3N1Yj48L2k+PGk+QjwvaT7vvJ17PGk+eDwvaT5877yNMeKJpDxpPng8L2k+4omkNH0=
- 提示2:IDxpPkE8L2k+77ydezxpPng8L2k+fO+8jTLiiaQ8aT54PC9pPuKJpDN977yM5omA5LulPGk+QTwvaT7iiKkoJiM4NzA1OzxpPjxzdWI+VTwvc3ViPjwvaT48aT5CPC9pPinvvJ17PGk+eDwvaT5877yNMeKJpDxpPng8L2k+4omkM30uIOerr+eCueWkhOeahOWPluiIjeaYk+WHuumUmS4=
- 答案:RA==
6Kej5p6Q77yaJiM4NzA1OzxpPjxzdWI+VTwvc3ViPjwvaT48aT5CPC9pPu+8nXs8aT54PC9pPnzvvI0x4omkPGk+eDwvaT7iiaQ0fe+8jDxpPkE8L2k+77ydezxpPng8L2k+fO+8jTLiiaQ8aT54PC9pPuKJpDN977yM5omA5LulPGk+QTwvaT7iiKkoJiM4NzA1OzxpPjxzdWI+VTwvc3ViPjwvaT48aT5CPC9pPinvvJ17PGk+eDwvaT5877yNMeKJpDxpPng8L2k+4omkM30=