简介：Sulfurtransformationin3soilsmaintainedinaclosedincubationsystemanditsavailabilitytoplantswereinvestigatedusingcarrier-free^35S-SO4^2-and^35S-labeledryegrassstraw.Forcarrier-freeNa2^35SO4treatment,78%,70%and64%of^35SappliedwerefoundinCa(H2PO4)2-extractaleSfraction,4%,5%and7%inslowlysolubleinorganicS,11%,15%and18%inC-O-S,5%,7%,and6%inC-bondedS,and5%,7%and6%inunidentifiedorganicS120daysafterincubationinblacksoil,cinnamonsoilandchestnutsoil,respectively.Mostof35Suptakebyplantscamefromextractable35SO4^2-,andlittlefromC-O-^35SandC-bonded^35S,Inthetreatmentwith35S-labeledstraw,51%,46%and36%of35SincorporatedwerefoundinCa(H2PO4)2-extractableSfraction,7%,6%and7%inslowlysolubleinorganicS,13%,15%and18%inC-O-S,8%,8%and6%inC-bondedS,and18%,25%and35%inunidentifiedorganicSattheendofincubationinabove-mentonedthreesoils,respectively.HigheravailabilityofC-O-35S,C-bonded35Sandunidentifiedorganic35Sfrom35S-labeledstrawwasobservedin35S-labeledstrawtreatmentcomparedtocarrier-freeNa2^35SO4treatment.

简介：AccordingtoXinhuaNet,Chinahasapproved10citiesandtownstostartthepilotprojectofbuildinghealthycitiesandtowns.Accordingtopreliminarystatistics,sixprovinceshavealreadydevelopedactivityplanorprogramsfortheproject,and25prefecture-levelcitieshavealreadystartedtheprojectaccordingtopreviousplanning.

简介：摘要目的探讨输尿管镜下使用钬激光采取“S”切口处理输尿管狭窄的临床疗效。方法输尿管镜下使用钬激光对输尿管狭窄部行“S”型全层切开，术后留置F5～6#双J管。结果35例术后3～6个月拔出双J管，随访3～8个月，34例治愈，1例再次狭窄。结论“S”型输尿管全层切开具有术后再次发生狭窄率低的特点。

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简介：俄罗斯曾经推出一种双管的“联盟”152毫米自行火炮，后因各种问题下马，不少人就因此认为俄罗斯自行火炮走了弯路。然而阅兵式上，一种基于“联盟”发展而来的新的自行火炮开上了红场，这就是2S35“联盟-SV”。它的亮相证明，俄罗斯在自行火炮的开发研制方面依然站在世界前沿。

简介：摘要：通过电缆不同布置方式的对比分析，确认了佛山地铁 2 号线 35kV 环网电缆的布置方式，对电缆几种接地方式的优缺点进行了简要的介绍，通过计算得出了单点接地时电缆的 容许长度 ，进而结合工程实际，确定了各个供电分区的电缆金属护层接地方式，对工程的实施具有较强的指导意义。

简介：摘要：通过电缆不同布置方式的对比分析，确认了佛山地铁 2 号线 35kV 环网电缆的布置方式，对电缆几种接地方式的优缺点进行了简要的介绍，通过计算得出了单点接地时电缆的 容许长度 ，进而结合工程实际，确定了各个供电分区的电缆金属护层接地方式，对工程的实施具有较强的指导意义。

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简介：""Mensaytheyhatetoshop,""saysZhukin,CityUniversityofNewYorkSociology(社会学)professor.""Yetwhenyouaskthemdeeperquestions,itturnsoutthattheyliketoshop.Mengenerallyliketoshopforbooks,musicandhardware.Butifyouaskthemabouttheshoppingtheydoforbooksormusic,they'llsay,'Well,that'snotshopping.That'sresearch.'""

简介：Romanticismisanimportantstageintheevolutionofman’sself-consciousness.Itshowsnewinterestinandnewconcernwithmanandnature.Wordsworthiswell-knownasanaturepoet.Thethemeofhumanmindandnatureinhispoemshaslongattractedreaders’attention.However,hedoesnotindulgeinnatureitselfbuttakesitasconsolationandinspirationforhumankind.Inordertohighlightthepoet’sconcernwithhumanmind,thepresentpaperchoosestoexploreWordsworth’sconcernwithchildren’smind,basedontheanalysisofWordsworth’sThePreludeandmanyofhispoemsaboutchildren.

简介：Sinceancienttimes,asoneofthesymbolsofuglyanddirty,prostitutesareinvariablylivingintheblackmarginsofsociety.Facingprostitutes’miseries,peoplealwayscannotunderstandtheiremotions,mentalitiesanddesires,ortreatsthemasequals,particularlyaswomen.ProstitutesareaspecialgroupintheoppressedwomeninWesternsocieties.MargaretandNanaaretwotypicalimagesoftheminthehistoryofwesternliterature.Withtearsandlives,theydeducetheirmiserablelifestoriessimilarly.

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简介：<正>PeopleintheUnitedStateshonortheirparentswithtwospecialdays:Mother’sDay,onthesecond

简介：文章剖析了C/S模式和B/S模式的优势与不足,在此基础上提出了让这两种模式优势互补的CB/S模式,并例举了使用VB实现CB/S模式的方案.