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【单选题】
在引起高血压的危险因素中,哪些是不可以改变的?A.
年龄
B.
饮酒
C.
吸烟
D.
肥胖
E.
情绪紧张
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【单选题】Average cost declines as output expands in a production process with:
A.
constant returns to scale.
B.
decreasing returns to scale.
C.
decreasing returns to a factor input.
D.
increasing returns to scale.
【单选题】Suppose that a given firm experiences decreasing marginal product of labor with the addition of each worker regardless of the current output level.Refer to Scenario 5-1. Average variable cost will be
A.
rising at all points.
B.
falling at all points.
C.
U-shaped.
D.
constant.
【单选题】Which of the following items would be associated with unexpected losses? I. Loan defaults are increasing simultaneously while recovery rates are decreasing. II. Lending losses are covered by charging ...
A.
I only.
B.
II only.
C.
Both I and II
D.
Neither I nor II.
【单选题】Suppose that a given firm experiences decreasing marginal product of labor with the addition of each worker regardless of the current output level.Refer to Scenario 5-1. Average total cost will be
A.
rising at all points.
B.
falling at all points.
C.
constant.
D.
U-shaped.
【简答题】Conversation 2 6. A. The cost of advertisement is increasing. B. Advertising can’t attract enough customers. C. The whole market is shrinking at present. D. The sales of his business are decreasing....
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