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传播媒介
时间:2022-01-02 08:00
关键词:
传染病学
医学三基(医师)
新闻学与传播学综合练习
电网调度自动化运行值班员
电网调度运行人员考试
答案解析
<p> 指将病原体从传染源传播给易感动物的各种外界因素。可以是生物(叫做媒介者或媒生物,如蚊、蝇、蚤类等),也可以是无生命的物体(叫做媒介物或污染物)。</p>
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boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing
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