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【单选题】
The existence of external economies of scale _______.A.
tends to result in large profits for each firm.
B.
may be associated with a perfectly competitive industry.
C.
cannot be associated with a perfectly competitive industry.
D.
tends to result in one huge monopoly.
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【判断题】The Cabinet in UK works on the principle of collective responsibility and individual ministerial responsibility
A.
正确
B.
错误
【单选题】Mark is refinishing an antique china cabinet and has already spent $180 on the restoration. He expects to be able to sell the cabinet for $360. Mark discovers that he needs to do an additional $200 ...
A.
He should sell the cabinet now for $100.
B.
He should keep the cabinet since it wouldn’t be rational to spend $380 restoring a cabinet and then sell it for only $360.
C.
He should complete the additional work and sell the cabinet for $360.
D.
It does not matter which action he takes since the outcome will be the same either way.
【简答题】What is “shadow cabinet”? What role does it play in the UK government?
【单选题】Whenever a person is made a minister of Cabinet rank in the UK, he or she is made a member of ________.
A.
the House of Lords
B.
the House of Commons
C.
the Privy Council
D.
Parliament
【单选题】The cabinet of the Opposition Party in Britain is known as the _____ Cabinet.
A.
Shadow
B.
Window
C.
Ruling
D.
Coalition
【简答题】已知函数f（x）=e x -ln（x+1） （I）求函数f（x）的单调区间； （II）证明： e+ e 1 2 + e 1 3 +…+ e 1 n ≥ln(n+1)(n∈ N * ，e为常数) ．
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