午夜性影院在线观看视频播放

　　兒?(er)童??(tong)至??(zhi)青??(qing)少??(shao)年??(nian)期??(qi)(4～18歲??(sui))?，隨??(sui)著??(zhe)免??(mian)疫??(yi)系??(xi)統(tǒng)??(tong)逐?(zhu)漸??(jian)成??(cheng)熟??(shu)?，適??(shi)應(yīng)?(ying)性??(xing)免??(mian)疫??(yi)(T細(xì)??(xi)胞??(bao)、B細(xì)??(xi)胞??(bao))開??(kai)始??(shi)發(fā)??(fa)揮??(hui)主??(zhu)力??(li)作??(zuo)用??(yong)?，能??(neng)針?(zhen)對(duì)??(dui)病??(bing)原??(yuan)體??(ti)產(chǎn)??(chan)生??(sheng)特??(te)異??(yi)性??(xing)抗??(kang)體?(ti)??。??但??(dan)免??(mian)疫??(yi)系?(xi)統(tǒng)??(tong)也??(ye)可??(ke)能??(neng)因??(yin)“經(jīng)??(jing)驗(yàn)??(yan)不??(bu)足??(zu)”而??(er)反??(fan)應(yīng)??(ying)過??(guo)度??(du)?，如??(ru)對(duì)??(dui)花??(hua)粉??(fen)、食?(shi)物??(wu)等?(deng)無??(wu)害??(hai)物??(wu)質(zhì)??(zhi)過??(guo)度??(du)反??(fan)應(yīng)??(ying)?，引??(yin)發(fā)??(fa)哮??(xiao)喘??(chuan)、濕??(shi)疹?(zhen)；如??(ru)接??(jie)觸??(chu)外??(wai)界??(jie)增??(zeng)多??(duo)?，易??(yi)感??(gan)染??(ran)手??(shou)足??(zu)口??(kou)病??(bing)、水??(shui)痘??(dou)等??(deng)傳??(chuan)染?(ran)病??(bing)???！　〉??(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(xì)??(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)同祝(tong)護(hù)??(hu)城??(cheng)河?(he)的??(de)“清??(qing)道??(dao)夫??(fu)”??，通??(tong)過??(guo)擺??(bai)動(dòng)??(dong)??，將?(jiang)灰??(hui)塵?(chen)和??(he)病??(bing)原??(yuan)體??(ti)排??(pai)出??(chu)體??(ti)外??(wai)??。??ZDHEKWBDEHqibao666888　　er ?(er)tong ??(tong)zhi ??(zhi)qing ??(qing)shao ??(shao)nian ??(nian)qi ??(qi)(4～18sui ??(sui))?，sui ??(sui)zhe ??(zhe)mian ??(mian)yi ??(yi)xi ??(xi)tong ??(tong)zhu ?(zhu)jian ??(jian)cheng ??(cheng)shu ??(shu)?，shi ??(shi)ying ?(ying)xing ??(xing)mian ??(mian)yi ??(yi)(Txi ??(xi)bao ??(bao)、Bxi ??(xi)bao ??(bao))kai ??(kai)shi ??(shi)fa ??(fa)hui ??(hui)zhu ??(zhu)li ??(li)zuo ??(zuo)yong ??(yong)?，neng ??(neng)zhen ?(zhen)dui ??(dui)bing ??(bing)yuan ??(yuan)ti ??(ti)chan ??(chan)sheng ??(sheng)te ??(te)yi ??(yi)xing ??(xing)kang ??(kang)ti ?(ti)??。??dan ??(dan)mian ??(mian)yi ??(yi)xi ?(xi)tong ??(tong)ye ??(ye)ke ??(ke)neng ??(neng)yin ??(yin)“jing ??(jing)yan ??(yan)bu ??(bu)zu ??(zu)”er ??(er)fan ??(fan)ying ??(ying)guo ??(guo)du ??(du)?，ru ??(ru)dui ??(dui)hua ??(hua)fen ??(fen)、shi ?(shi)wu ??(wu)deng ?(deng)wu ??(wu)hai ??(hai)wu ??(wu)zhi ??(zhi)guo ??(guo)du ??(du)fan ??(fan)ying ??(ying)?，yin ??(yin)fa ??(fa)xiao ??(xiao)chuan ??(chuan)、shi ??(shi)zhen ?(zhen)；ru ??(ru)jie ??(jie)chu ??(chu)wai ??(wai)jie ??(jie)zeng ??(zeng)duo ??(duo)?，yi ??(yi)gan ??(gan)ran ??(ran)shou ??(shou)zu ??(zu)kou ??(kou)bing ??(bing)、shui ??(shui)dou ??(dou)deng ??(deng)chuan ??(chuan)ran ?(ran)bing ??(bing)???！　i ??(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 祝(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)??。??