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简介：喻岚同学的这段描述让小编猜了又猜，既像是写mumanddad，又像是写好朋友……

简介：时间：ADayinSpring地点：InaNaturePark角色：Sarah，Mike，Amy，John，Frog，Snake适合年级：小学五年级道具：几棵大树、一些花草、垃圾箱、可乐罐、望远镜、金色假发、动物套装、背景音乐

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简介：热火VS公牛。其意义远不止《一天、一场比赛》那么简单。自从上赛季东部决赛之后，这两支球队的对抗便牵动着整个NBA。热火集中了2003届最优秀的三名球员——其中两人已经预定了名人堂的位置．而公牛队则拥有联盟最炙手可热的球星德里克·罗斯。

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简介：欧洲的各大媒体在愚人节这天都会各施绝招，比比谁最有想像力，谁的假新闻更“真”!

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简介：土豆psyllid，Bactericera(=Paratrioza)cockerelli(ulc)(半翅类：Triozidae)，是土豆的一个主要害虫。研究被进行决定男性和女性在到达繁殖成熟和年龄的效果并且在性别吸引力上白天预定的年龄。成年B。cockerelli活动范围在48h以内的繁殖成熟羽化以后，与在1天在羽化和男性的日子是成熟的女性一起羽化以后。Oviposition通常在交配以后开始了2天，但是当女性们在2以内交配了天时，被推迟羽化以后。在实验室olfactometer试金，当气味来源和到这些气味的男性assayed的年龄没影响性别吸引力，女性的年龄使用了，与两个更年轻(14-day-old)并且更旧(810-day-old)男性们正在被吸引到女性，不管女年龄(14-day-old或810-day-old)。男性assayed到在不同时间的实时女性在光照发育阶段期间(在8:00和20:00小时之间)被吸引到在11:00和17:00小时之间的女性，与B在性别吸引力显示出时间的频率。cockerelli至少在光照发育阶段期间。

简介：BasedontheNCEP/NCARreanalysisdataandtheobservedprecipitationdatainthesouthofChinafrom1958to2000,theimpactof30to60dayoscillationofatmosphericheatsourcesonthedroughtandfloodeventsinJuneinthesouthofChinaisdiscussed.Duringtheflood(drought)events,thereexistsananomalouslow-frequencyanticyclone(cyclone)atthelowlevelofthetroposphereovertheSouthChinaSeaandthenorthwesternPacific,accompaniedwithanomalouslow-frequencyheatsinks(heatsources),whilethereexistsananomalouslow-frequencycyclone(anticyclone)withanomalousheatsources(sinks)overtheareafromthesouthofChinatothesouthofJapan.Onaverage,thephaseevolutionofthelow-frequencyindroughteventsis7to11daysaheadofthatinfloodeventsinMaytoJuneinthesouthofChina.Infloodevents,low-frequencyheatsourcesandcyclonesarepropagatednorthwardfromthesouthernSouthChinaSea,northwestwardfromthewarmpoolofthewesternPacificandwestwardfromthenorthwesternPacificaround140°E,whichhaveveryimportantimpactontheabundantrainfallinJuneinthesouthofChina.However,indroughtevents,thenorthwardpropagationsofthelow-frequencyheatsourcesandcyclonesfromtheSouthChinaSeaanditsvicinityareratherlatecomparedwiththoseinfloodevents,andthereisnoobviouswestwardpropagationoftheheatsourcesfromthenorthwesternPacific.Thetimingofthelow-frequencyheatsourcepropagationhasremarkableimpactontheJunerainfallinthesouthofChina.

简介：Daily850-hPameridionalwindfieldsinEastAsiafromMarchtoSeptember2002wereusedtoestablishamodeloftheprincipaloscillationpattern(POP).Thismodelwasthenusedtoconductindependentextended-rangeforecastsoftheprincipaltemporalandspatialvariationsinthelow-frequencymeridionalwindfieldonatimescaleof20-30days.ThesevariationsaffecttheoccurrenceofheavyprecipitationeventsinthelowerreachesoftheYangtzeRivervalley(LYRV).Theresultsof135forecastexperimentsduringthesummerhalfyearshowthatthepredictedandobservedanomaliesarestronglycorrelatedataleadtimeof20days(meancorrelationgreaterthan0.50).Thisstrongcorrelationindicatesthatthemodeliscapableofaccuratelyforecastingthelow-frequencyvariationsinmeridionalwindthatcorrespondedtothe3heavyprecipitationeventsintheLYRVduringthesummerof2002.Furtherforecastexperimentsbasedondatafrommultipleyearswithsignificant20-30-dayoscillationsshowthatthesepredictionmodesareeffectivetoolsforforecastingthespace-timeevolutionofthelow-frequencycirculation.ThesefindingsofferpotentialforimprovingtheaccuracyofforecastsofheavyprecipitationovertheLYRVatleadtimesof3-4weeks.