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【简答题】
电桥可分为（）和交流电桥两大类。
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举一反三
【单选题】Barriers that prevent the entry of new firms may arise because:
A.
economies of scale exist over a substantial range of industry demand.
B.
marginal revenue is less than average total cost.
C.
the government protects some firms from competition.
D.
of both (a) and (c).
【简答题】Discuss the differences between French Civil Code and German Civil Code.
【单选题】Firms may be tempted to cheat on cartel agreements by:
A.
raising both price and output.
B.
lowering both price and output.
C.
raising price and reducing output.
D.
lowering price and increasing output.
【单选题】Subsidies to domestic firms may lead to
A.
An increase in prices
B.
Higher volume of exports
C.
Higher volume of imports
D.
Increase in welfare of the trading partner
【多选题】Which of the following is not the reason that firms may experience diseconomies of scale ?
A.
the firm is too small to take advantage of specialization.
B.
large management structures may be bureaucratic and inefficient.
C.
if there are too many employees, the work place becomes crowded and people become less productiv e.
D.
average fixed costs begin to rise again.
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