单项选择题

A projeet team budgeted US $3,000 for the work performed and has spent US $4,000 to date. If they budgeted US $5, 000 for the work scheduled, what is the cost variance ？（）

A．$-1,000.
B．$2,000.
C．$1,000.
D．$-2,000.

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单项选择题

Rebaselining may be required in cost control when （）.

A．CVs are severe, and a realistic measure of performance is needed
B．revised cost estimates are prepared and distributed to stakeholders
C．corrective action must be taken to bring expected future performance in line with the project plan
D．EAC shows that additional funds are needed to complete the project even if a scope change is not needed

单项选择题

The cost reserve should be （）.

A．hidden to prevent management from disallowing the reserve
B．added to each task to prevent the customer from knowing that a reserve exists
C．maintained by management to cover cost overruns
D．added to the base costs of the project to account for risks