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问题 单项选择题

遗忘是人人都经历过的正常现象，甚至对某些情况来说，遗忘未必是坏事。假如只有记忆没有遗忘，无意中学到的坏习惯岂不成了永远摆脱不掉的负担理想的状况应该是：该记住的永远保留，不该记的随时忘掉。这意味着()

A．我们不会，也不应该记住所有的事情

B．我们所记住的事情都是该记的，不该记的早已忘掉

C．遗忘可以使人摆脱各种负担和烦恼

D．没有坏习惯的人是因为有了“遗忘”的帮助

答案

参考答案：A

解析：本题C、D．-j-~很容易排除，主要在于A、B，B项所讲的“我们所记住的事情都是该记的，不该记的早已忘掉”是题干的理想状态，不是题干全部的含义．A项“我们不会记住所有的事情”是从“遗忘是人人经历过的正常现象”推出的，“不应该记住所有的事情”是从“假如只有记忆没有遗忘，无意中学到的坏习惯岂不成了永远摆脱不掉的负担”推出的．

多选题

如图所示，金属块P沿竖直墙壁（墙壁粗糙）向上做匀速直线运动，水平向右的力F1（F1＞0）将金属块P压向竖直墙壁，竖直向上的力F2沿着墙壁竖直向上拉动金属块P，金属块P所受重力为G，金属块P对竖直墙壁的压力为F3，竖直墙壁对金属块P的压力为F4，竖直墙壁对金属块P的摩擦力为f，则下列选项正确的是

[ ]

A．F1与F4大小相等  

B．F3与F4是一对相互作用力  

C．F2与G是一对平衡力  

D．G与f之和与F2大小相等
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单项选择题

Questions from 31 to 35 are based on the following passage: As overseas sales and profits as a percentage of total sales and profits increase, there is likely to be more headquarters’ attention paid to foreign operations. Similarly, there will be pressures to centralize control in order to deal with the growing number of global competitors and the more homogenized(同质的) needs of global consumers. The need for centralization will present more challenges for MNEs in controlling their global operations.One challenge involves management’s position in foreign facilities, where manager may see the erosion of their autonomy over marketing, production, and financial decisions. To keep those managers motivated, the company needs to include more nationalities on boards of directors and use cross-national management teams to develop practices that are globally rather than nationally oriented. But with such cross-national fertilization comes the risk of clashes between cultural traditions.A second challenge for MNEs is a consequence of their size. A number of them already have sales larger than many countries’ GDPs. To manage such organizations may require even greater decentralization and more horizontal communication among subsidiaries in different countries that are mutually dependent on parts, products, and resources. This mutual dependence among subsidiaries may in turn require new hierarchical relationships within the organizational structure.

The relation among subsidiaries preferred by an MNE is（）.

A．greater decentralization

B．mutual dependence

C．easy communication

D．everlasting independence
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