欧美丰满肥臀一区,亚洲乱伦性爱小说视频,最新无码人妻在线不卡,京广成人小电影a三区,先锋色色AV网,亚洲伊人涩涩

原標(biāo)題：14初女破初的小说

學(xué)習(xí)快評丨qibao666888　　先??(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??(shi)迅??(xun)速??(su)反??(fan)應(yīng)??(ying)??。??　　首??(shou)先??(xian)要??(yao)識??(shi)別?(bie)“自??(zi)我??(wo)”與??(yu)“非??(fei)我??(wo)”??。??通??(tong)過??(guo)細(xì)??(xi)胞??(bao)表??(biao)面??(mian)的??(de)特??(te)殊??(shu)蛋??(dan)白??(bai)(如??(ru)MHC分??(fen)子??(zi))區(qū)?(qu)分??(fen)自??(zi)身??(shen)細(xì)??(xi)胞??(bao)和??(he)外??(wai)來??(lai)病??(bing)原??(yuan)體??(ti)??。一??(yi)旦?(dan)誤??(wu)判??(pan)??，可??(ke)能??(neng)攻??(gong)擊??(ji)自??(zi)身??(shen)組??(zu)織??(zhi)??，導(dǎo)??(dao)致??(zhi)類??(lei)風(fēng)秘(feng)濕?(shi)關(guān)??(guan)節(jié)??(jie)炎??(yan)、1型??(xing)糖??(tang)尿??(niao)病?(bing)等??(deng)疾??(ji)病??(bing)??。。