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  3. According to the author,what may be the possible carriers of bird flu? [br] By s

According to the author,what may be the possible carriers of bird flu? [br] By s

游客2023-09-15  32
问题 According to the author,what may be the possible carriers of bird flu? [br] By saying "bird flu viruses appear to exist in ducks in a low-pathogenic form" (Para.6), the author suggests that infection
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答案 doesn’t usually lead to severe illness and death
解析 定位到第六段可知，作者提到bird flu viruses appear to exist in ducks in a tow-pathogenic form是想表明，传染通常不会导致严重的疾病和死亡。
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