而且总则的规定大多比较原则和抽象，缺乏具体的实用性和可操作性。

General provisions and principles and is mostly abstract, the lack of specific practical and operable.

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显然，这样的解释比较原则，具体的项目管理工作范围、内容、职责要在业主方与被聘者签订的《服务协议》中一一明确。

"Obviously, Such a comparison principle, the specific scope of project management, content, duty to the owners to employ persons with the" service agreement "gives clear."

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统一这些策略的一个公共原则是：解决通用问题比解决比较特定的问题更容易。

One common principle that unifies several of these is that it can be easier to solve a general problem than a more specific one.

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