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Results The resistance ratios of the natural populations of Cx. pipiens quinquefasciatus to BPMC and acetophenate were at a low level close to those of susceptible lines; 結果 致倦庫蚊自然種群對仲丁威、三氯殺蟲酯抗性倍數較低,接近於敏感品系; www.bmsw.net.cn