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【简答题】
微观卫生分配坚持的伦理原则和做法是什么?
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反馈参考答案：
举一反三
【单选题】When there is a fire in a large electric motor, normally the very FIRST step is to _____.
A.
secure the electric supply
B.
ventilate area to remove smoke
C.
start the fire pump and lead out hose
D.
apply foam
【单选题】Internal economies of scale
A.
may be associated with a perfectly competitive industry.
B.
cannot be associated with a perfectly competitive industry.
C.
are associated only with sophisticated products such as aircraft.
D.
cannot form the basis for international trade .
E.
None of the above.
【单选题】External economies of scale
A.
may be associated with a perfectly competitive industry
B.
cannot be associated with a perfectly competitive industry.
C.
tends to result in one huge monopoly.
D.
tends to result in large profits for each firm.
E.
None of the above
【简答题】写出下列随机试验的样本空间S： (1) 记录一个班一次数学考试的平均分数(设以百分制记分)． (2) 生产产品直到有10件正品为止，记录生产产品的总件数. (3) 对某工厂出厂的产品进行检查，合格的记上“正品”，不合格的记上“次品”，如连续查出了2件次品就停止检查，或检查了4件产品就停止检查，记录检查的结果. (4) 在单位圆内任意取一点，记录它的坐标.
【单选题】Economies of scale:
A.
are the result of a diminishing marginal product.
B.
pertain to the long run only.
C.
refer to the increase in output that results from the increased utilization of a single input.
D.
imply that the average total cost curve will fall continuously as output increases in the short run.
【简答题】When you are finished with the electric iron, don’t forget_____(关掉它). (turn)
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