一 M1:=REF(C,3)>REF(O,3);M2:=REF(C,2)M3:=REF(VOL,3)>REF(VOL,4) AND REF(VOL,2)M1 AND M2 AND M3; 二 O=L AND REF(O,1)=REF(L,1) AND REF(C,1)>REF(O,1) AND C>O
