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　　花??(hua)粉??(fen)過??(guo)敏??(min)又??(you)叫??(jiao)花??(hua)粉??(fen)癥??(zheng)、枯??(ku)草??(cao)熱??(re)??，主??(zhu)要??(yao)是??(shi)由??(you)于??(yu)對(duì)??(dui)植??(zhi)物??(wu)花??(hua)粉??(fen)存??(cun)在??(zai)過??(guo)敏??(min)現(xiàn)??(xian)象??(xiang)??，并??(bing)對(duì)??(dui)眼??(yan)、鼻??(bi)、呼??(hu)吸??(xi)道?(dao)、皮??(pi)膚??(fu)等??(deng)產(chǎn)??(chan)生?(sheng)影??(ying)響??(xiang)??。??該?(gai)類??(lei)疾??(ji)病??(bing)的??(de)過??(guo)敏??(min)原?(yuan)是??(shi)花??(hua)粉??(fen)??，過??(guo)敏??(min)原??(yuan)傳?(chuan)播??(bo)的??(de)媒??(mei)介??(jie)主??(zhu)要??(yao)是??(shi)風(fēng)??(feng)??。在??(zai)我??(wo)國(guó)??(guo)??，不??(bu)同??(tong)地??(di)區(qū)??(qu)的??(de)氣??(qi)傳??(chuan)花??(hua)粉??(fen)植??(zhi)物??(wu)季??(ji)節(jié)??(jie)分??(fen)布??(bu)特??(te)征??(zheng)因??(yin)氣??(qi)候??(hou)條??(tiao)件??(jian)、植??(zhi)物??(wu)的??(de)物??(wu)候??(hou)條?(tiao)件??(jian)特??(te)征??(zheng)不??(bu)同??(tong)??，存??(cun)在??(zai)一??(yi)定??(ding)差??(cha)異??(yi)??。對(duì)??(dui)于??(yu)北??(bei)京??(jing)來??(lai)說??(shuo)??，氣?(qi)傳??(chuan)花??(hua)粉??(fen)植??(zhi)物?(wu)的??(de)盛??(sheng)花??(hua)期??(qi)主??(zhu)要??(yao)分??(fen)為??(wei)2個(gè)??(ge)高??(gao)峰??(feng)期??(qi)??，那??(na)么??(me)花??(hua)粉??(fen)過??(guo)敏?(min)的??(de)流??(liu)行??(xing)也??(ye)就??(jiu)相??(xiang)應(yīng)??(ying)存??(cun)在?(zai)兩??(liang)個(gè)??(ge)高??(gao)發(fā)??(fa)期??(qi)???！　　?開??(kai)車??(che)時(shí)??(shi)關(guān)??(guan)緊?(jin)車??(che)窗??(chuang)；。