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若集合A={x|2≤x<4},B={x|3x-7≥8-2x}则A∪B=( ) A...
若集合A={x|2≤x<4},B={x|3x-7≥8-2x}则A∪B=( )
A.{x|3≤x<4}
B.{x|2≤x<4}
C.{x|x≥2}
D.{x|x≥3}
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