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- 问题详情：Americanbeekeepingoperationshavebeenhithardbywhatscientistscallcolonycollapsedisorder.Almosthalfoftheirworkerbeeshavedisappearedduringthepastseason.C.C.D.hasalsobeenreportedinIsrael,EuropeandSouthAmerica.Beesflyawayfromthehiveandneverreturn.S...
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