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原標(biāo)題：bt天堂网bt在线

　　花??(hua)粉??(fen)經(jīng)??(jing)呼??(hu)吸??(xi)道??(dao)吸??(xi)入??(ru)后??(hou)??，首??(shou)先??(xian)到??(dao)達(dá)??(da)上??(shang)呼??(hu)吸??(xi)道??(dao)??，引??(yin)起??(qi)鼻??(bi)癢??(yang)、發(fā)??(fa)作??(zuo)性??(xing)噴??(pen)嚏??(ti)、大??(da)量??(liang)清??(qing)水??(shui)樣??(yang)鼻??(bi)涕?(ti)和??(he)鼻?(bi)塞??(sai)等??(deng)過(guò)??(guo)敏??(min)性??(xing)鼻??(bi)炎??(yan)的??(de)癥??(zheng)狀??(zhuang)??。??　　若??(ruo)空?(kong)氣??(qi)中??(zhong)花??(hua)粉??(fen)濃??(nong)度??(du)較??(jiao)高??(gao)??，花??(hua)粉??(fen)可??(ke)能??(neng)會(huì)??(hui)沉?(chen)積??(ji)在?(zai)下??(xia)呼??(hu)吸??(xi)道??(dao)??，導(dǎo)?(dao)致??(zhi)發(fā)??(fa)作??(zuo)性??(xing)喘??(chuan)息?(xi)、咳??(ke)嗽??(sou)、胸??(xiong)悶??(men)等??(deng)過(guò)??(guo)敏??(min)性??(xing)哮?(xiao)喘??(chuan)的??(de)癥??(zheng)狀?(zhuang)??。??。