5thInternationalConferenceonAirPollutionandEnvironmentalEngineering(APEE2025)第五届空气污染与环境工程国际会议(APEE2025)-本次会议征稿主题：大气颗粒物污染形成的关键过程空气污染物...

香港EMEHSS2025年第九届经济与管理，教育，人文与社会科学国际会议(EMEHSS2025)2025the9rdInternationalConferenceonEconomicsandManagement,Education,HumanitiesandSocialSciences(EMEHSS...

董文明;焦凌梅;...157...uniplatform=NZKPT&language=CHS中国知网CNKI

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做定量时绘制标准曲线，结果是浓度越低的ct值越小是怎么回事？还有就是扩增效率为-99是怎么回事?求大佬指点。

梁丽娜王彦珍安嘉文农业科研单位人才队伍建设与相关思考农业...v=Z9TaDEt-WU6vFw7ZkhEtkM4v7WBeMmfrn1UjroX23M-2yPft6-txiTBr8rTQ7QpL中国知网CNKI急求《农业科研单位人才队伍建设与相关思考》

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[info7]http://kns.cnki.net/KCMS/detail/detail.aspx?dbcode=CMFD&dbname=CMFD201501&filename=1014061494.nh&uid=WEEvREcwSlJHSldRa1Fhb09jMjQwWUl4VFBXZkNPUzg2NWYxR2RTQ2gwZz0=$9A4hF_...

]0]_Q8RTQ~KAH95}[D}IUO.png[info1]求助一篇含2aR,4S,4aS,5R,6R,8S,9aS,10S,10bS)-4,5,8,10b-Tetraacetoxy-9a-(2-hydroxy-2-propanyl)-4a,7-dimethyl-2a,3,4,4a,5,6...

【作者】color...'http://jpe.oxfordjournals.org/cgi/content/abstract/rtq008v1'[net]http://jpe.oxfordjournals.org/cgi/content/abstract/rtq008v1net]