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已知集合M={x||x-4|+|x-1|<5},N={x|a<x<6},且M∩N...
已知集合M={x||x-4|+|x-1|<5},N={x|a<x<6},且M∩N={2,b},则a+b=( )
A.6
B.7
C.8
D.9
考点分析:
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