A1:=EXIST(CROSS(MA(C,5),MA(C,10)),3); A2:=EXIST(CROSS(MA(C,5),MA(C,20)),3); A3:=CROSS(MA(C,10),MA(C,20)); A4:=MA(C,20)>=REF((MA(C,20)),1); 三军会师:A1 AND A2 AND A3 AND A4;
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