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【判断题】
偏距为零的曲柄滑块机构,当曲柄为件时,它的行程速比系数K=1。 A. 对 B. 错A.
正确
B.
错误
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举一反三
【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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