Methods: To applied cluster sampling method interview all the village health workers.
2
分析了安宁市环境噪声质量状况、主要来源和污染原因，提出了防治及控制措施。
The situation of environmental noise quality of Anning is analyzed, as well as the noise sources and the reasons of pollution, based on which, control measures are pointed out.
3
在城市竞争力分析框架下，分析了云南省安宁市的城市竞争性环境，从另一个角度审视城市竞争力。
The case analyzes the urban competitive environment of Arming, a city in Yunnan province t based on the framework of urban competitive edge, which is another point of view for that.
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