在综合评价方法上，本文依据本研究样本数量多、指标相关性大的特点，选用了更为科学客观的因子分析法。
In the comprehensive evaluation methods, it chooses the factor analysis which is more scientific and objective, base on the large number of samples and major relevance indicators.
客观科学地进行旅游广告效果评价是开展旅游广告活动的基础与依据。
Tourism promotion activities are based on the rational and impersonal assessment of tourism ads effects.
目的：为变声后“假声”的命名、诊断、治疗及疗效评价提供科学、客观的理论依据。
Objective:Set an objectively scientific foundation for name, diagnosis, therapy and assessment of mutational falsetto.
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