PDP 也可以调用 策略信息点（PIP）服务检索与主体、资源或者环境有关的属性值。

The PDP may also invoke the Policy Information Point (PIP) service to retrieve the attribute values related to the subject, the resource, or the environment.

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最后，在上述研讨的基本上，论文有针对性地提出了五点提高网络学习者信息素养的策略。

Finally, on the basis of the above-mentioned study, the thesis puts forward five-point strategy to cultivate the learner's information literacy in network environment.

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以上英汉翻译策略中最重要的一点是：译出信息所表达的语用功能必须与原语信息的语用功能相一致。

The most important point in my E-C translation strategies is that the translated information should have the same pragmatic functions as the source one.

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