【题文】设,,,则=( )A.B.C.D.
【题文】设,,,则=( )A.B.C.D.
题型:难度:来源:
答案
【答案】C
解析
【解析】略
举一反三
【题文】定义
A-
B = {
x|
x
A,且
x
B},若
A =" {2," 4, 6, 8, 10},
B =" {1," 4, 8},则
A-
B等于
(2)
A.{4, 8} | B.{1, 2, 6, 10} | C.{1} | D.{2, 6, 10} |
【题文】定义
A-
B = {
x|
x
A,且
x
B},若
A =" {2," 4, 6, 8, 10},
B =" {1," 4, 8},则
A-
B等于
(2)
A.{4, 8} | B.{1, 2, 6, 10} | C.{1} | D.{2, 6, 10} |
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