MA1:=MA(C,5);MA2:=MA(C,10);MA3:=MA(C,20);AA:=ATAN((MA1/REF(MA1,1)-1)*100)*180/3.1416>45;BB:=ATAN((MA2/REF(MA2,1)-1)*100)*180/3.1416>45;XG:AA AND BB AND CROSS(MA2,MA3); (已测试）
