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【单选题】
车削时常在轴的根部和的底部做出环形沟槽,以保证加工到位及装配时零件靠紧,这种环形沟槽称为( )。A.
越程槽
B.
退刀槽
C.
轴肩
D.
凸台
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举一反三
【单选题】The law of diminishing returns states that as
A.
the size of a plant increases, the firm's fixed cost decreases.
B.
the size of a plant increases, the firm's fixed cost increases.
C.
a firm uses more of a variable input, given the quantity of fixed inputs, the marginal product of the variable input ually diminishes.
D.
a firm uses more of a variable input, given the quantity of fixed inputs, the firm's average total cost will decrease ually.
【单选题】The "Law of Diminishing Returns" states that
A.
additional inputs will reduce output.
B.
additional inputs will decrease average productivity.
C.
the supply of inputs is becoming scarce.
D.
additional inputs will lead to less additional output.
【简答题】幼儿教师的教育研究以解决 教育 中的 为主。
【单选题】If there are diminishing returns to capital, then ( )
A.
capital produces fewer goods as it ages.
B.
old ideas are not as useful as new ones.
C.
increases in the capital stock ually decrease output.
D.
increases in the capital stock increase output by ever smaller amounts.
【简答题】Diminishing returns，law of 收益递减规律
【单选题】Diminishing returns to specialization occurs when:
A.
each additional unit is produced with lesser number of laborers.
B.
a nation's gross domestic product declines for a few years.
C.
production possibility frontier appears as a rectangle.
D.
more units of resources are required to produce each additional unit.
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