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关注:1
2013-05-23 12:21
求翻译:Resistant houseflies preferred to rest on the bellies of cattle rather than the heads that were treated with pyrethroid ear tags.是什么意思?![]() ![]() Resistant houseflies preferred to rest on the bellies of cattle rather than the heads that were treated with pyrethroid ear tags.
问题补充: |
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