成环的知识聚焦

丁二烯成环作用词语：丁二烯成环作用解释：butadienecyclization词典：化学专业汉英词典...

ChinesesearchenginegiantBaiduannouncedonFridaythatitsdriverlesscarhasfinishedroadtestsandsucceededinautomaticdrivinginmixedroadconditions.本周五，中国的搜索引擎巨头百度宣布，百度无人驾驶汽车已完成路测，成功...

Hollywoodhadoneofitsbestsummerseveratthedomesticboxoffice,butitwasasharplylopsidedvictory.Studioseitherthrivedorwithered,anoutcomethatreflectsthewinner-take-allnatureofthemass-appealmoviebusiness.今年...

Beijingwillbuilda3.5ringroadbetweentheexisting3rdand4thringsinfiveyearstoeasetrafficpressure,accordingtoarecentreportontransportationdevelopmentinBeijingissuedbytheMunicipalCommissionofTransport.北京...

Aroundonein2,000childrenwilldevelopleukaemia.Uptonow,thetriggerhasremainedamystery.每2000名儿童中，就有一人或患上白血病。迄今为止，白血病的诱因仍是未解之谜。ButleadresearcherProfessorMelGreaves,fromTheIns...

UniversalMusicGrouptodayannouncedanexclusiveinternationalrecordingagreementwithKrisWu,oneofAsia'sbiggeststars,whoseworkencompassesmusic,filmandtelevision.环球音乐集团今天宣布与亚洲巨星之一吴亦凡签...

3FastandFestiveChristmasWreaths3款喜庆圣诞花环快速搞定有妙招Itdoesn'ttakehourstofashiontheseChristmaswreathsthatwelcomevisitorstoyourhomeinholidaystyle!如今，制作喜迎宾客的圣诞花环不再需要花费大量时间...

A23-year-oldCanadianmodelknowssomethingabout"elfesteem"afterhavingherearssurgicallymodifiedtolooklikethemythicalcreature's.一位23岁的加拿大模特把自己的耳朵整形成了和神话里的精灵一样，如今她应该对所...

Earthisourhomeandenvironmentiseverything.Wouldyouliketobeagreenerpersontoprotectit?Herearesomeadvice.地球是我们的家而环境就是一切。你想成为环保人士吗？这里有一些建议。Youshouldreducethewasteyouproduced,...

“IfYouAreWorkingOnSomethingThatYouReallyCareAbout,YouDon’tHaveToBePushed.TheVisionPullsYou.”–SteveJobs如果你正在你真正关心的事情上努力，你不需要被推动，而是愿景推动着你。Whateveryouwantorneedinlifecan...

Ikeaplanstousepackagingmadewithmushroomsasaneco-friendlyreplacementforpolystyrene,theSwedishretailgianthasrevealed.瑞典家居用品巨头宜家家居日前表示，宜家计划用蘑菇制成的环保包装材料代替聚苯乙烯。Theflat...

Sarah’sfourthbook,WildByNature,wasreleasedthisweek.Recountingherextraordinarysolohikethattookherliterallyfromoneendoftheplanettotheother,Sarah’sbookisastoryaboutwalkingforthreeyearsbyherse...

Over3000swansarrivedattheirwinterhabitatinRongchengcity,inChina'sShandongprovincebyMonday,November21,2011.2011年9月21日，周一，3000余只天鹅迁徙到中国山东荣成。Flocksofthesewhiteweathered,elegantbirdsg...

A23-year-oldCanadianmodelknowssomethingabout"elfesteem"afterhavingherearssurgicallymodifiedtolooklikethemythicalcreature's.一位23岁的加拿大模特把自己的耳朵整形成了和神话里的精灵一样，如今她应该对所谓精...

Children’seducationhasbeenconcernedbythepublicallthetime.Astheyarethefutureandwilldecideacountry’sdestiny,sotheenvironmentmatterssomuchtothem.Mostparentsexpecttheschoolcanprovidethechildrenagoodlear...

为应对气候变化，保护环境，许多国家确立了到本世纪中叶实现净零碳排放的目标。氢在今年成为首选的未来绿色燃料，而使用可再生能源对水进行电解来提取的绿氢更是受到人们的关注。Hydrogenhastakenoffthisyearasthefuturegr...

寿司做法如下：紫菜、麻油、米饭、醋（必备的材料）鱼籽酱、黄瓜、莴苣、肉松、香肠、鸡蛋、白芝麻、火腿、蟹柳、辣椒酱、沙拉酱（这些配料可根据自己的喜欢选择）HowtomakeSuShi:Lavers,sesameoil,rice,vinegar(necessary),ca...

3FastandFestiveChristmasWreaths3款喜庆圣诞花环快速搞定有妙招Itdoesn'ttakehourstofashiontheseChristmaswreathsthatwelcomevisitorstoyourhomeinholidaystyle!如今，制作喜迎宾客的圣诞花环不再需要花费大量时...

ArtistswithUniversal,theworld'slargestmusiccompany,willbeavailableonTencent'sQQMusic,KuGouandKuwoservices.世界上最大的音乐公司--环球音乐--的艺人的音乐将可以在腾讯QQ音乐、酷狗和酷我上收听。Thed...

BBCNews–FyodorKonyukhov,65,ARussianballoonisthassetanewrecordforflyingnon-stoparoundtheworld,hissupportcrewhavesaid.BBC新闻–俄罗斯热气球飞行家，65岁的费奥多.考纽科夫创造了不着陆环球飞行新纪录，他的后勤...

今日格言：Setagoalbigenoughthatintheprocessofachievingit,youbecomesomeoneworthbecoming.设定一个足够大的目标，在实现它的过程中，你会成为一个值得成为的人。单词记忆enoughadv.足够地，充足地n.很多；充足adj.充足的int...

Imagineanearlysilenttrainthatglidesalongitstracksemittingnothingmoretoxicthanwater.想象一下，一辆火车消无声息地沿着铁轨运行，排放物中的有毒物质不过是水。Thattrainisareality.这种火车是真实存在的。InMarch,G...

BBCNews–Thefirstround-the-worldsolarpoweredflighthasbeencompleted,aftertheSolarImpulseaircrafttoucheddowninAbuDhabi.BBC新闻–太阳动力飞机在阿布扎比着陆，由太阳能驱动的首次环球飞行就此完成。BertrandPicc...

China'sgreenhousegasemissionscouldstarttodeclinewithin10years,accordingtoareportfromtheLondonSchoolofEconomics.伦敦政治经济学院的一份报告指出，中国的温室气体排放量将在未来10年内开始下降。Thiswouldbefiv...

Britain'sfirstcommercialflight,poweredbysustainablebiofuel,hastakenofffromBirminghamAirport。TheThomsonAirwaysBoeing757useda50/50mixofusedcookingoilandtraditionalaviationfuel。Thursday's14:25BSTflig...