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【判断题】
制表定位键盘上的Tab键有关。A.
正确
B.
错误
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【单选题】Which of the following best explains why increasing marginal costs of production arise?
A.
The factor endowments vary across countries.
B.
All the factor inputs are not fully utilized in the production of different commodities.
C.
Different consumers have different taste and preference sets.
D.
Different commodities use inputs in different proportions.
【单选题】If, as the quantity produced increases, a production function first exhibits increasing marginal product and later diminishing marginal product, the corresponding marginal-cost curve will
A.
be flat (horizontal).
B.
slope upward.
C.
slope downward.
D.
be U-shaped.
【单选题】人寿保险合同在履行过程中，在一定期间内，由于失去某些合同要求的必要条件（如欠交保费等），致使合同失去效力，称为（ ）。
A.
合同中止
B.
合同失效
C.
合同到期
D.
合同解除
【单选题】Increasing marginal returns occur when the _________.
A.
average product of a worker is less than the average product of the previous worker
B.
marginal product of a worker exceeds the marginal product of the previous worker
C.
average product of labor is at a maximum
D.
marginal product of labor exceeds the average product of labor.
E.
marginal product of labor is at a maximum
【判断题】The "Law of Diminishing Marginal Returns" could also be termed the "Law of Increasing Marginal Costs."
A.
正确
B.
错误
【单选题】人寿保险合同在履行过程中，在一定期间内，由于失去某些合同要求的必要条件（如欠交保费等），致使合同失去效力，称为（ ）。
A.
合同解除
B.
合同失效
C.
合同到期
D.
合同中止
【判断题】The "Law of Diminishing Marginal Returns" could also be termed the "Law of Increasing Marginal Costs."
A.
正确
B.
错误
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