Itistheofthisshopthatifyouspoilanymaterialyouhavetopayforitoutofyourpieceworkearnings.A.practiceB.traditionC.cu
It is the ________ of this shop that if you spoil any material you have to pay for it out of your piece work earnings.
A. practice | B. tradition | C. custom | D. habit |
B
1.写出满足{a,b}⊆A⊊{a,b,c,d}的集合A.2.设全集U=R,A={x|≥4或x≤-4 2020-04-05 …
已知全集u={1,2,3,4,5,6,7,},A={2,4,5},B={1,3,5,7}求(CuA 2020-05-16 …
设全集U=R,集合A={x|x^2-x-6<0},B={x||x-4|<2},求A交B,A并B,C 2020-05-16 …
证明(A∩B)∩C=A∩(B∩C),(A∪B)∪C=A∪(B∪C),A∩(B∪C)=(A∩B)∪( 2020-06-14 …
设全集为U,用集合A、B的交集、并集、补集分别表示如图韦恩图中Ⅰ、Ⅱ、Ⅲ、Ⅳ四个部分为:Ⅰ部分:A 2020-07-30 …
设全集为U,用集合A,B的交、并、补集符号表示图中的阴影部分为()A.A∩BB.CU(A∩B)C. 2020-07-30 …
1)设全体为实数集R,集合A=(0,+∞),B=[0,3],求(1)CRA(2)CR(A∩B)2) 2020-08-01 …
(2010•湖北模拟)设全集为U,用集合A、B的交集、并集、补集分别表示如图韦恩图中Ⅰ、Ⅱ、Ⅲ、Ⅳ 2020-08-01 …
如图,阴影部分表示的集合是()A.B∩[CU(A∪C)]B.(A∪B)∪(B∪C)C.(A∪C)∩( 2020-12-07 …
如图,阴影部分表示的集合是A.B∩[CU(A∪C)]B.(A∪B)∪(B∪C)C.(A∪C)∩(CU 2020-12-07 …