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　　B細??(xi)胞??(bao)作??(zuo)為??(wei)“抗??(kang)體??(ti)工??(gong)廠?(chang)”?，能??(neng)針??(zhen)對??(dui)不??(bu)同??(tong)病??(bing)原??(yuan)體??(ti)定??(ding)制??(zhi)特??(te)異??(yi)性??(xing)抗??(kang)體??(ti)?，通??(tong)過??(guo)中??(zhong)和??(he)病??(bing)毒??(du)或??(huo)標??(biao)記??(ji)病??(bing)原??(yuan)體??(ti)協(xié)??(xie)助??(zhu)清?(qing)除??(chu)機??(ji)制??(zhi)；同??(tong)時??(shi)分??(fen)化??(hua)出??(chu)的??(de)記??(ji)憶??(yi)B細??(xi)胞??(bao)可??(ke)在??(zai)免??(mian)疫??(yi)結(jié)??(jie)束?(shu)后??(hou)保??(bao)留??(liu)抗?(kang)體?(ti)“圖??(tu)譜??(pu)”?，實??(shi)現(xiàn)??(xian)快??(kuai)速??(su)二??(er)次?(ci)應(yīng)??(ying)答??(da)??。??　　第??(di)一??(yi)道??(dao)防?(fang)御??(yu)是??(shi)物??(wu)理??(li)屏?(ping)障??(zhang)??，比??(bi)如??(ru)皮??(pi)膚?(fu)和??(he)黏??(nian)膜??(mo)??，像??(xiang)城??(cheng)墻??(qiang)一??(yi)樣??(yang)覆??(fu)蓋??(gai)體??(ti)表??(biao)??，通?(tong)過?(guo)汗??(han)液??(ye)、皮??(pi)脂??(zhi)和?(he)黏??(nian)液??(ye)中??(zhong)的??(de)抗??(kang)菌??(jun)成??(cheng)分??(fen)??，直??(zhi)接??(jie)阻??(zu)擋??(dang)細??(xi)菌??(jun)、病?(bing)毒??(du)入??(ru)侵?(qin)；比??(bi)如??(ru)呼??(hu)吸??(xi)道??(dao)纖??(xian)毛??(mao)??，如??(ru)同??(tong)護??(hu)城?(cheng)河??(he)的?(de)“清??(qing)道??(dao)夫??(fu)”??，通??(tong)過??(guo)擺??(bai)動??(dong)??，將?(jiang)灰??(hui)塵??(chen)和??(he)病??(bing)原??(yuan)體??(ti)排??(pai)出??(chu)體??(ti)外??(wai)?。??EHELFZWYKNqibao666888　　Bxi ??(xi)bao ??(bao)zuo ??(zuo)wei ??(wei)“kang ??(kang)ti ??(ti)gong ??(gong)chang ?(chang)”?，neng ??(neng)zhen ??(zhen)dui ??(dui)bu ??(bu)tong ??(tong)bing ??(bing)yuan ??(yuan)ti ??(ti)ding ??(ding)zhi ??(zhi)te ??(te)yi ??(yi)xing ??(xing)kang ??(kang)ti ??(ti)?，tong ??(tong)guo ??(guo)zhong ??(zhong)he ??(he)bing ??(bing)du ??(du)huo ??(huo)biao ??(biao)ji ??(ji)bing ??(bing)yuan ??(yuan)ti ??(ti)xie ??(xie)zhu ??(zhu)qing ?(qing)chu ??(chu)ji ??(ji)zhi ??(zhi)；tong ??(tong)shi ??(shi)fen ??(fen)hua ??(hua)chu ??(chu)de ??(de)ji ??(ji)yi ??(yi)Bxi ??(xi)bao ??(bao)ke ??(ke)zai ??(zai)mian ??(mian)yi ??(yi)jie ??(jie)shu ?(shu)hou ??(hou)bao ??(bao)liu ??(liu)kang ?(kang)ti ?(ti)“tu ??(tu)pu ??(pu)”?，shi ??(shi)xian ??(xian)kuai ??(kuai)su ??(su)er ??(er)ci ?(ci)ying ??(ying)da ??(da)??。??　　di ??(di)yi ??(yi)dao ??(dao)fang ?(fang)yu ??(yu)shi ??(shi)wu ??(wu)li ??(li)ping ?(ping)zhang ??(zhang)??，bi ??(bi)ru ??(ru)pi ??(pi)fu ?(fu)he ??(he)nian ??(nian)mo ??(mo)??，xiang ??(xiang)cheng ??(cheng)qiang ??(qiang)yi ??(yi)yang ??(yang)fu ??(fu)gai ??(gai)ti ??(ti)biao ??(biao)??，tong ?(tong)guo ?(guo)han ??(han)ye ??(ye)、pi ??(pi)zhi ??(zhi)he ?(he)nian ??(nian)ye ??(ye)zhong ??(zhong)de ??(de)kang ??(kang)jun ??(jun)cheng ??(cheng)fen ??(fen)??，zhi ??(zhi)jie ??(jie)zu ??(zu)dang ??(dang)xi ??(xi)jun ??(jun)、bing ?(bing)du ??(du)ru ??(ru)qin ?(qin)；bi ??(bi)ru ??(ru)hu ??(hu)xi ??(xi)dao ??(dao)xian ??(xian)mao ??(mao)??，ru ??(ru)tong ??(tong)hu ??(hu)cheng ?(cheng)he ??(he)de ?(de)“qing ??(qing)dao ??(dao)fu ??(fu)”??，tong ??(tong)guo ??(guo)bai ??(bai)dong ??(dong)??，jiang ?(jiang)hui ??(hui)chen ??(chen)he ??(he)bing ??(bing)yuan ??(yuan)ti ??(ti)pai ??(pai)chu ??(chu)ti ??(ti)wai ??(wai)?。??