国产高清在线看av片

　　其??(qi)次??(ci)是??(shi)清??(qing)除??(chu)威??(wei)脅?(xie)??，包??(bao)括??(kuo)消??(xiao)滅?(mie)細?(xi)菌??(jun)、病??(bing)毒??(du)等??(deng)外??(wai)來??(lai)入??(ru)侵?(qin)者??(zhe)??，及??(ji)時??(shi)發(fā)??(fa)現(xiàn)??(xian)并??(bing)清??(qing)除?(chu)異??(yi)常?(chang)細??(xi)胞秘(bao)??，防??(fang)止??(zhi)腫??(zhong)瘤?(liu)形??(xing)成??(cheng)??。??　　人??(ren)體??(ti)由??(you)兩??(liang)支??(zhi)精??(jing)銳?(rui)部??(bu)隊??(dui)——先??(xian)天??(tian)性??(xing)免??(mian)疫??(yi)和??(he)適??(shi)應?(ying)性??(xing)免??(mian)疫??(yi)組??(zu)成??(cheng)??。??它??(ta)們??(men)分??(fen)工??(gong)明??(ming)確??(que)、協(xié)??(xie)同??(tong)作?(zuo)戰(zhàn)??(zhan)??，既??(ji)能??(neng)抵??(di)御??(yu)外??(wai)敵??(di)入??(ru)侵??(qin)??，又??(you)能??(neng)清??(qing)理??(li)內??(nei)部??(bu)隱??(yin)患??(huan)??。DSYQMHFXPHqibao666888　　qi ??(qi)ci ??(ci)shi ??(shi)qing ??(qing)chu ??(chu)wei ??(wei)xie ?(xie)??，bao ??(bao)kuo ??(kuo)xiao ??(xiao)mie ?(mie)xi ?(xi)jun ??(jun)、bing ??(bing)du ??(du)deng ??(deng)wai ??(wai)lai ??(lai)ru ??(ru)qin ?(qin)zhe ??(zhe)??，ji ??(ji)shi ??(shi)fa ??(fa)xian ??(xian)bing ??(bing)qing ??(qing)chu ?(chu)yi ??(yi)chang ?(chang)xi ??(xi)bao 秘(bao)??，fang ??(fang)zhi ??(zhi)zhong ??(zhong)liu ?(liu)xing ??(xing)cheng ??(cheng)??。??　　ren ??(ren)ti ??(ti)you ??(you)liang ??(liang)zhi ??(zhi)jing ??(jing)rui ?(rui)bu ??(bu)dui ??(dui)——xian ??(xian)tian ??(tian)xing ??(xing)mian ??(mian)yi ??(yi)he ??(he)shi ??(shi)ying ?(ying)xing ??(xing)mian ??(mian)yi ??(yi)zu ??(zu)cheng ??(cheng)??。??ta ??(ta)men ??(men)fen ??(fen)gong ??(gong)ming ??(ming)que ??(que)、xie ??(xie)tong ??(tong)zuo ?(zuo)zhan ??(zhan)??，ji ??(ji)neng ??(neng)di ??(di)yu ??(yu)wai ??(wai)di ??(di)ru ??(ru)qin ??(qin)??，you ??(you)neng ??(neng)qing ??(qing)li ??(li)nei ??(nei)bu ??(bu)yin ??(yin)huan ??(huan)??。