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单项选择题

A.随着投入的增加,边际产量增加B.边际产量将向平均产量趋近C.随着投入的增加,平均产量一定增加如果一种投入要……

如果一种投入要素的平均产量高于其边际产量,则(    )。
   A.随着投入的增加,边际产量增加
   B.边际产量将向平均产量趋近
   C.随着投入的增加,平均产量一定增加
   D.平均产量将随投入的增加而降低

A.随着投入的增加,边际产量增加

B.边际产量将向平均产量趋近

C.随着投入的增加,平均产量一定增加
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未分类题第二节 完型填空阅读下面短文,从短文后所给各题的四个选项(A、B、C和D)中选出能填入相应空白处的最佳选项。The increase in international business has created a need for managers with knowledge of foreign languages and skills in cross cultural communication. Americans, however, have not been well trained in higher area and, 【B1】 , have not enjoyed the same 【B2】 of success in negotiation (谈判) in an international area as their foreign counterparts. Negotiating is the process of 【B3】 back and forth for the purpose of reaching an agreement. It includes persuasion and compromise (折中), but in order to 【B4】 either one, the negotiator, must understand the ways which people are persuaded and how compromise is reached with the 【B5】 of negotiation. In many international business negotiations abroad, Americans are 【B6】 as wealthy and impersonal. It often 【B7】 to the foreign negotiators that the Americans stand for a large multi million dollar corporation that can 【B8】 to pay the price without 【B9】 further. The American negotiator's role becomes that of a(n) 【B10】 provider of information and cash.【B11】 studies of American negotiators abroad, several traits have been proved that may 【B12】 to support this unchanging perception (看法). Two traits 【B13】 that cause cross cultural misunderstanding are directness and 【B14】 on the part of the American negotiators. 【B15】 , American negotiators often insist on realizing short term 【B16】 . Foreign negotiators, on the other hand, may 【B17】 the relationship set up between negotiators and may be willing to spend time in it for long term interests. Clearly, perceptions and differences in values 【B18】 the outcomes of negotiations and the 【B19】 of negotiators. For Americans to play a more effective role in international business negotiation, they must put forth more effort to 【B20】 cross cultural understanding.【B1】A.besidesB.otherwiseC.butD.therefore