A . A.37周≤GA<40周,2500gB . B.37周≤GA<42周,2500g≤BW≤4000gC . C.37周≤GA<42周,2500gD . D.37周≤GA≤42周,2500g≤BW≤4000gE . E.37周≤GA≤40周,2500g≤BW≤4000g
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