结论以家蝇、金蝇和绿蝇为优势蝇种。
方法在实验室的养虫笼内观察家蝇和大头金蝇的产卵基质选择行为；
Methods The choice of spawning substrates by M. domestica and C. megacephala in insect rearing cages was recorded in laboratory.
两小时前，轻蝇量级夺冠热门邹市明夺得中国首枚奥运拳击金牌。两个小时后，张又很意外地再添一金。这是张迄今为止在国际大赛上取得的最好成绩。
About two hours after light flyweight favorite Zou Shiming made history with China's first Olympic boxing gold medal, Zhang added a more surprising title in his best international result to date.
两小时前，轻蝇量级夺冠热门邹市明夺得中国首枚奥运拳击金牌。两个小时后，张又很意外地再添一金。这是张迄今为止在国际大赛上取得的最好成绩。
About two hours after light flyweight favorite Zou Shiming made history with China's first Olympic boxing gold medal, Zhang added a more surprising title in his best international result to date.
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