Not what your church teaches Sal
917. What is the Mass?
A. The Mass is the unbloody sacrifice of the body and blood of Christ.
920. Is the Mass the same sacrifice as that of the Cross? A. The Mass is the same sacrifice as that of the Cross.
Q. 921. How is the Mass the same sacrifice as that of the Cross?
A. The Mass is the same sacrifice as that of the Crossbecause the offering and the priest are the sam -- Christ our Blessed Lord; and the ends for which the sacrifice of the Mass is offered are the same as those of the sacrifice of the Cross.
http://www.vatican.va/archive/ENG0015/__P41.HTM
1367 The sacrifice of Christ and the sacrifice of the Eucharist are one single sacrifice: "The victim is one and the same: the same now offers through the ministry of priests, who then offered himself on the cross; only the manner of offering is different." "In this divine sacrifice which is celebrated in the Mass, the same Christ who offered himself once in a bloody manner on the altar of the cross is contained and is offered in an unbloody manner."188
Which raises the question then, of where the blood that they claim Catholics are eating when they partake of the eucharist, comes from.....