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已知集合A={x|(x-1)(a-x)>0},集合B={x||x+1|+|x-2...
已知集合A={x|(x-1)(a-x)>0},集合B={x||x+1|+|x-2|≤3},且(CRA)∪B=R,则实数a的取值范围是
( )
A.(-∞,2)
B.(-1,+∞)
C.[-1,2]
D.[-1,1)∪(1,2]
考点分析:
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