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简介：垃圾处理是当今世界面对的大问题，下图是英国曼切斯特人弃置的冰箱，数量多得吓人!

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简介：AmongtheHenduanMountains,therearefouradjacentpeaksthatcomprisetheFour-GirlMountainRange.TheyarelocatedinRilongTownontheborderofXiaojinCountyandWenchuanCountyinAbaTibetanAutonomousPrefecture.Itis3,160metershighabovesealeveland220kmfromChengdu.

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简介：TheTengpeopleareanethnicgroupwholiveintheboundaryareaofTibet.Forvariousreasons,thesurveyofethnicminoritiesinChina.conductedinthe1950s,excludedtheTengpeople.Nevertheless,theproducts,thelifestyleandeventhecultureoftheTengpeopleareuniqueamongstethnicTibetan.Moinpa,andLhopa.Theyare,therefore,namedasthe"Tengpeople".

简介：AlthoughChenChunyu,theheadofourtourgrouphadtoldusto,getreadybyeighto'clock,XiuXiuandIwokeupasearlyassix;webothfeltsoexcited.

简介：Thereisastorytellingofareligiousmasterallegedlycapableofmovingmountains.Amancametohimaskingforademonstratiom.Themastersatinfrontofamountainforamoment,thenwenttotheothersideofitanddeclaredtheendofthedemonstration.Alltheaudiencesweregreatlypuzzledandbeggedhimforanexplanation.Hesaid:“Therehasneverbeenawayofmovingmountains;whatyoucandoistogotothemountainifitdoesn'tcome”.

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简介：<正>WeareconcernedwiththefollowingDirichletproblem:-△u（x）=f（x,u）,x∈Ω.u∈H01（Ω）.（P）wheref（x,t）∈C（Ω×R）,f（x,t）/tisnondecreasingint∈RandtendstoanL∝-functionq（x）uniformlyinx∈Ωast→+∝（i.e.,f（x,t）isasymptoticallylinearintatinfinity）.Inthiscase.anAmbrosetti-Rabinowitz-typecondition,thatis.forsomeθ>2.M>0,0<θF（x.s）≤f（x,s）s,forall|s|≥Mandx∈Ω,（AR）isnolongertrue,whereF（x,s）=integralfromn=0tosf（x,t）dt.Asiswellknown,（AR）isanimportanttechnicalconditioninapplyingMountainPassTheorem.Inthispaper,withoutassuming（AR）weprove,byusingavariantversionofMountainPassTheorem,thatproblem（P）hasapositivesolutionundersuitable,conditionsonf（x,t）andq（x）.Ourmethodsalsoworkforthecasewheref（x,f）issuperlinearintatinfinity.i.e.,q（x）≡∞.

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简介：在分析中国水土资源的状况及水土流失危害的基础上，作者介绍了中国山区流域经营的主要经验与措施体系；应用全国各大流域２０个典型，分析了流域经营的效益．为了判别流域经营的可持续性，提出了包括社会经济与生态环境两个方面的可持续流域经营指标体系．

简介：ＲｉｔｕａｌＷａｌｋｓＡｒｏｕｎｄＢｅｎｒａｂＭｏｕｎｔａｉｎ￥／／ＬＡＭＣＯＴｈｅＮｙｉｎｇｃｈｉａｒｅａａｌｏｎｇｔｈｅＮｙａｎｇＱｎＲｉｖｅｒ，ａｎａｒｅａｈｉｓｔｏｒｉｃａｌｌｙｋｎｏｗｎａｓＧｏｎｇｂｏ，ｗａｓｔｈｅｈｎｍｅｏｆｔｈｅＧｏｎ...

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