单项选择题

A project manager needs to analyze the project cost to find ways to decrease costs. It would be BEST if the project manager looks at （）.

A．variable costs and fixed costs
B．fixed costs and indirect cost
C．direct costs and variable costs
D．indirect costs and direct costs

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单项选择题
All of the following are examples of tools often used in estimate costs EXCEPT （）.

A．parametric modeling
B．analogous estimating
C．bottom-up estimating
D．activity duration estimates
单项选择题
In the earned value technique, cost variance is computed as （）.

A．EV minus PV
B．EV minus AC
C．AC minus EV
D．PV minus EV
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