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　　適??(shi)應(yīng)??(ying)性??(xing)免??(mian)疫??(yi)??，是??(shi)后??(hou)天??(tian)訓(xùn)??(xun)練??(lian)的??(de)“智??(zhi)能??(neng)特??(te)種??(zhong)兵??(bing)”??。??如??(ru)果??(guo)說(shuō)??(shuo)先??(xian)天??(tian)性??(xing)免??(mian)疫??(yi)是??(shi)“快??(kuai)速??(su)反??(fan)應(yīng)??(ying)部??(bu)隊(duì)??(dui)”??，那??(na)么??(me)??，適??(shi)應(yīng)??(ying)性??(xing)免??(mian)疫?(yi)就??(jiu)是??(shi)經(jīng)??(jing)過(guò)??(guo)特??(te)訓(xùn)??(xun)的??(de)“智??(zhi)能??(neng)特??(te)種??(zhong)兵??(bing)”??，能??(neng)精??(jing)準(zhǔn)??(zhun)識(shí)??(shi)別??(bie)并??(bing)消??(xiao)滅??(mie)特??(te)定??(ding)敵??(di)人??(ren)??，還??(hai)能??(neng)形??(xing)成??(cheng)長(zhǎng)??(chang)期??(qi)記?(ji)憶??(yi)???！　∈??(shou)先??(xian)要??(yao)識(shí)??(shi)別??(bie)“自??(zi)我?(wo)”與??(yu)“非??(fei)我??(wo)”??。?通??(tong)過(guò)??(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(lái)??(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)??(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)??。。