A.實現(xiàn)數(shù)據(jù)之和的價值大于數(shù)據(jù)的價值之和 B.實現(xiàn)數(shù)據(jù)的價值之和大于數(shù)據(jù)之和的價值 C.實現(xiàn)數(shù)據(jù)之和的價值等于數(shù)據(jù)的價值之和 D.實現(xiàn)數(shù)據(jù)的價值之和等于數(shù)據(jù)之和的價值
A.11 B.12 C.14 D.15
A.469 B.477 C.484 D.500