The cost principle is based on the assumption that cost is equal to fair market value at the date of acquisition and subsequent changes are not relevant to it.

成本原则假设成本等于资产购置时的公平市价，因此，取得以后市价的变动对成本全无影响。

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This paper analyses the method of logistics outsourcing cost. The current financial system and accounting method can not meet the demand from the cost principle and method.

现行的财务会计制度和会计核算方法在核算原则、方法和手段上都难以满足物流外包成本核算的需要，因而不能正确地对物流外包业务的成本进行度量。

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Therefore, according to the benefits principle, the wealthy should contribute more than the poor to the cost of maintaining the police force.

因此，根据利益原则，富人应该比穷人贡献更多的维持警察部队工作的费用。

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That cost insulation is the principle factor driving the explosion of health care spending.

FORBES: How Tax Reform Facilitates Health Care Reform

First is the principle of opportunity cost.

FORBES: Simple Economics Lessons for Two Historians

When that cost is another principle and the future well-being of an entire country, maybe some compromise is warranted.

FORBES: Are Obama, Boehner, and Cantor going to follow their principles off the cliff?