证据3是对广告做的事前评估，而事前评估与事后评估不一致，评估报告依据的来源需要确定；
Exhibit 3 is the prior assessment on the advertisement which is inconsistent with the post-fact assessment and the source of the evaluation bases should be ascertained;
这种事前规划包括对现有数据和现有系统中使用的技术的技术评估。
This pre-planning involves a technical evaluation of the data available and the technology employed in existing systems.
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