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　　在??(zai)人??(ren)類??(lei)演??(yan)化?(hua)的?(de)長?(chang)河?(he)中??(zhong)??，人??(ren)體??(ti)免??(mian)疫??(yi)系?(xi)統(tǒng)??(tong)猶??(you)如?(ru)一??(yi)座??(zuo)精??(jing)密??(mi)設(shè)??(she)計(jì)??(ji)的??(de)防??(fang)御??(yu)工??(gong)事??(shi)??，其??(qi)運(yùn)??(yun)作??(zuo)機(jī)??(ji)制??(zhi)既??(ji)展??(zhan)現(xiàn)??(xian)著??(zhe)生??(sheng)命??(ming)演??(yan)化??(hua)的??(de)智??(zhi)慧??(hui)??，也??(ye)蘊(yùn)??(yun)含??(han)著??(zhe)醫(yī)??(yi)學(xué)??(xue)干??(gan)預(yù)??(yu)的??(de)啟??(qi)示??(shi)??。??猶??(you)如??(ru)一?(yi)個(gè)??(ge)“隱??(yin)形??(xing)盾?(dun)牌??(pai)”??，免??(mian)疫??(yi)防??(fang)御??(yu)遵??(zun)從??(cong)怎??(zen)樣??(yang)的??(de)層??(ceng)次??(ci)？??不??(bu)同?(tong)年??(nian)齡??(ling)的??(de)免??(mian)疫??(yi)特??(te)點(diǎn)??(dian)有??(you)哪?(na)些??(xie)？人??(ren)體??(ti)免??(mian)疫??(yi)平??(ping)衡??(heng)的??(de)本??(ben)質(zhì)??(zhi)又??(you)是??(shi)什??(shen)么??(me)？來??(lai)看??(kan)看??(kan)它??(ta)的??(de)運(yùn)??(yun)作??(zuo)奧??(ao)秘??(mi)???！　∵m??(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??(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??(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??(chang)期?(qi)記??(ji)憶??(yi)??。。