8050午夜二级无码中文字幕茄

　　嬰??(ying)幼??(you)兒??(er)期??(qi)(0～3歲??(sui))??，新??(xin)生??(sheng)兒??(er)免??(mian)疫??(yi)系?(xi)統(tǒng)??(tong)像??(xiang)一??(yi)支??(zhi)未??(wei)經(jīng)??(jing)實(shí)?(shi)戰(zhàn)??(zhan)的??(de)“新??(xin)兵??(bing)部??(bu)隊(duì)?(dui)”??，先??(xian)天??(tian)性??(xing)免??(mian)疫秘(yi)(如??(ru)中??(zhong)性??(xing)粒??(li)細(xì)??(xi)胞??(bao)、巨??(ju)噬??(shi)細(xì)??(xi)胞??(bao))活??(huo)性??(xing)高??(gao)??，但??(dan)皮??(pi)膚??(fu)、黏??(nian)膜??(mo)屏??(ping)障??(zhang)薄??(bo)弱??(ruo)??，易??(yi)受??(shou)病??(bing)毒??(du)(如??(ru)呼??(hu)吸??(xi)道??(dao)合??(he)胞??(bao)病??(bing)毒??(du)、輪??(lun)狀??(zhuang)病??(bing)毒??(du))侵??(qin)襲??(xi)??。??此??(ci)時(shí)??(shi)主??(zhu)要??(yao)依??(yi)賴??(lai)母??(mu)體??(ti)通??(tong)過?(guo)胎??(tai)盤??(pan)和?(he)母?(mu)乳??(ru)傳??(chuan)遞??(di)的??(de)抗??(kang)體?(ti)(如??(ru)IgG、IgA)提??(ti)供??(gong)保??(bao)護(hù)??(hu)???！　∠??(xian)天??(tian)性??(xing)免??(mian)疫??(yi)是??(shi)人??(ren)類??(lei)與??(yu)生??(sheng)俱??(ju)來?(lai)的??(de)防??(fang)御??(yu)系??(xi)統(tǒng)??(tong)??，如??(ru)同??(tong)城??(cheng)堡??(bao)的??(de)第?(di)一??(yi)道??(dao)城??(cheng)墻??(qiang)和??(he)巡??(xun)邏??(luo)衛(wèi)??(wei)兵??(bing)??，能??(neng)在??(zai)病?(bing)原??(yuan)體??(ti)入??(ru)侵??(qin)時(shí)??(shi)迅??(xun)速??(su)反?(fan)應(yīng)??(ying)??。?SBQTGZTCLZqibao666888　　ying ??(ying)you ??(you)er ??(er)qi ??(qi)(0～3sui ??(sui))??，xin ??(xin)sheng ??(sheng)er ??(er)mian ??(mian)yi ??(yi)xi ?(xi)tong ??(tong)xiang ??(xiang)yi ??(yi)zhi ??(zhi)wei ??(wei)jing ??(jing)shi ?(shi)zhan ??(zhan)de ??(de)“xin ??(xin)bing ??(bing)bu ??(bu)dui ?(dui)”??，xian ??(xian)tian ??(tian)xing ??(xing)mian ??(mian)yi 秘(yi)(ru ??(ru)zhong ??(zhong)xing ??(xing)li ??(li)xi ??(xi)bao ??(bao)、ju ??(ju)shi ??(shi)xi ??(xi)bao ??(bao))huo ??(huo)xing ??(xing)gao ??(gao)??，dan ??(dan)pi ??(pi)fu ??(fu)、nian ??(nian)mo ??(mo)ping ??(ping)zhang ??(zhang)bo ??(bo)ruo ??(ruo)??，yi ??(yi)shou ??(shou)bing ??(bing)du ??(du)(ru ??(ru)hu ??(hu)xi ??(xi)dao ??(dao)he ??(he)bao ??(bao)bing ??(bing)du ??(du)、lun ??(lun)zhuang ??(zhuang)bing ??(bing)du ??(du))qin ??(qin)xi ??(xi)??。??ci ??(ci)shi ??(shi)zhu ??(zhu)yao ??(yao)yi ??(yi)lai ??(lai)mu ??(mu)ti ??(ti)tong ??(tong)guo ?(guo)tai ??(tai)pan ??(pan)he ?(he)mu ?(mu)ru ??(ru)chuan ??(chuan)di ??(di)de ??(de)kang ??(kang)ti ?(ti)(ru ??(ru)IgG、IgA)ti ??(ti)gong ??(gong)bao ??(bao)hu ??(hu)???！　ian ??(xian)tian ??(tian)xing ??(xing)mian ??(mian)yi ??(yi)shi ??(shi)ren ??(ren)lei ??(lei)yu ??(yu)sheng ??(sheng)ju ??(ju)lai ?(lai)de ??(de)fang ??(fang)yu ??(yu)xi ??(xi)tong ??(tong)??，ru ??(ru)tong ??(tong)cheng ??(cheng)bao ??(bao)de ??(de)di ?(di)yi ??(yi)dao ??(dao)cheng ??(cheng)qiang ??(qiang)he ??(he)xun ??(xun)luo ??(luo)wei ??(wei)bing ??(bing)??，neng ??(neng)zai ??(zai)bing ?(bing)yuan ??(yuan)ti ??(ti)ru ??(ru)qin ??(qin)shi ??(shi)xun ??(xun)su ??(su)fan ?(fan)ying ??(ying)??。?