[单选]Curve D is increasing because
A. of diminishing marginal product.
B. of increasing marginal product.
C. marginal product first increases, then decreases.
D. marginal product first decreases, then increases.
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[单选] Curve D intersects curve C
A. where the firm maximizes profit.
B. at the minimum of average fixed cost.
C. at the efficient scale.
D. where fixed costs equal variable costs.
[单选]When marginal cost is greater than average cost, average cost is
A. rising.
B. falling.
C. constant.
D. The direction of change in average cost cannot be determined from this information.
[判断]企业的总利润等于边际收益减去边际成本。
A. 对
B. 错
[判断]对于完全竞争行业的企业,总收益、边际收益和平均收益都是相等的。
A. 对
B. 错
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