The origin, purpose, research method and function of logic have sufficiently proved this.

逻辑的起源、目的、研究方式和作用充分证明了这一点。

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Function evaluation methods usually include function cost method and function index method.

功能评价方法常采用功能成本法和功能指数法。

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Function evaluation methods usually include function cost method and function index method.

功能评价方法常采用功能成本法和功能指数法。

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