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(2002•海南)如图,已知梯形ABCD中,AD∥BC,对角线AC、BD分别交中...
(2002•海南)如图,已知梯形ABCD中,AD∥BC,对角线AC、BD分别交中位线EF于点H、G,且EG:GH:HF=1:2:1,那么AD:BC等于( )
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A.2:3
B.3:5
C.1:3
D.1:2
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