单项选择题

A.Machine.Chest.Press(器械握推):12RM
B.Barbell.Bench.Press(哑铃胸部推举):2RM
C.Cable.Cross.Over(绳索夹胸):4RM
D.Dumbbell.Chest.Fly(哑铃夹胸):6RM
E.以上皆非