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【多选题】
劳动的边际产量和产量的边际成本的关系是A.
边际成本是边际产量的倒数；
B.
边际成本等于工资除以边际产量；
C.
当边际产量向下倾斜时，边际成本向上倾斜；
D.
边际成本保持水平不变，边际产量遵循收益递减原则；
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反馈参考答案：
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】未经总监理工程师签字,( )。
A.
建筑材料、构配件和设备不得在工程上使用或安装
B.
施工单位不得进行下一道工序施工
C.
不得进行隐蔽验收
D.
建设单位不拨付进度款
【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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