Muchoftheeffortcostcontrolinvolvesanalyzingtherelationshipbetweentheconsumptionofprojectfundsandtheworkbeingaccomplishedforsuchexpenditures.Thekeytoeffectivecostcontrolisthemanagementoftheapproved().
A.Schedule baseline
B.Cost baseline
C.Cost output
D.Cost input
正确答案是B