如图,数轴上点A,B分别对应1,2,过点B作PQ⊥AB,以点B为圆心,AB长

如图,数轴上点AB分别对应12,过点BPQAB,以点B为圆心,AB长为半径画弧,交PQ于点C,以原点O为圆心,OC长为半径画弧,交数轴于点M,则点M对应的数是(

A.       B.       C.        D.               

答案

B

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