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为研究稻田区及非稻田区中华按蚊构成及与疟疾发病关系,在我省商南城关沿河稻田区及以外约5公里山麓区另择一调查点(均为牛房),进行同期对比
To investigate the relationship between the formation of Anopheles sinensis and the incidence of malaria in paddy and non-paddy areas, we selected another survey site (all cow houses) in the paddy fields around Shangnan Chengguan in the province and about 5 km away from the paddy fields in Shangnan Chengguan,