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【判断题】
“”两个符号表达从属或主次关系,开口正对编码所表示对象的一部分。即符号开口的方向必须朝向概念等次低的分类项。A.
正确
B.
错误
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【单选题】What is the current situation?
A.
Drug cartels gave up the attack.
B.
No evidence is provided to support the charge.
C.
Nahum Acosta is released now.
D.
The President canceled the travel plan.
【单选题】Cartels are difficult to maintain because:
A.
there are generally few barriers to entry in oligopoly markets.
B.
firms have a strong private incentive to cheat on agreements.
C.
it is difficult to enforce a cartel agreement.
D.
both (b) and (c).
【单选题】Cartels are thought to be inherently unstable because:
A.
the costs of enforcing cartel agreements are very low.
B.
each cartel member can privately profit from increasing production beyond agreed-upon levels.
C.
customers force cartel members to increase production and reduce prices.
D.
cartel agreements are legally binding and can be upheld in court.
【单选题】OPECs announcement about the cartels promise to add more barrels to production______
A.
is not only good news for OPEC, but good news for the New York Mercantile Exchange as well
B.
has been dismissed by the Market
C.
is the main reason the OPEC ministers took jets back home
D.
proves that OPEC has lost its power to control the Market
【单选题】Cartels usually succumb to divisive forces caused by:
A.
stringent enforcement of a cartel agreement.
B.
the similarity of production costs across member firms.
C.
members cheating by giving secret discounts.
D.
insufficient profits compared to independent operations.
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