题目内容

某企业购入一设备以扩充生产能力,现有A、B两个方案可供选择。A方案需投资20000元,使用寿命5年,采用直线法计提折旧,5年后无残值,5年中每年销售收入为15000元,每年付现成本为5000元;B方案需投资30000元,采用直线计提折旧,使用寿命为5年,5年后有残值收入4000元,5年中每年销售收入17000元,付现成本第1年为5000元,以后逐年增加修理费用200元,另需垫支营运资金3000元,假设所得税率为40%,资金成本为12%。要求:
(1)计算两个方案的净现值;
(2)计算两个方案的现值指数;
(3)计算两个方案的投资加收率;
(4)计算两个方案的内含报酬率;
(5)试判断应采用哪个方案？

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Welcome to the Midville City museum. This month we have a special display of colonial era

某承包人承接了一段长为19km的公路路基工程。该项目位于微丘地区，路基填料为土方。承包人严格按照有关规范和要求进行施工。在路堤填筑过程中局部出现了“弹簧”。为了赶工期，施工单位采取了掺生石灰粉翻拌的方法处理，待其含水量适宜后重新碾压。
问题：
对路基“弹簧”治理，除了背景材料中给出的方法外，还有哪些方法来治理？

Part A
Write a short composition about the following topic.
Topic: How do movies or TV influence people's behavior？ Use reasons and specific examples to support your answer.

The assumption underlying this distinction is that subjective or emotional criteria do not maximize satisfaction; therefore, it is reasonable to assume that consumers always attempt to select alternatives that, in their view, serve to minimize satisfaction. Obviously, the assessment of satisfaction is a very personal process, based on the individual's own needs as well as on past behavior, social, and learning experiences. What may appear as irrational to an outside observer may be perfect rational within the context of the consumer's own psychological field. If behavior. did not appear rational to the person who undertakes at the time that it is undertaken, obviously he or she would not do it. Therefore the distinction between rational and emotional motives does not appear to be warranted.
Some researchers go so far as to suggest that emphasis of "needs" obscures the rational, or conscious, nature of most consumer motivation. They claim that consumers act consciously to maximize their gains and minimize their losses; that they act on not from subconscious drives but from rational preferences.
(1)