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发表于:2019-12-31
问题详情:读下列材料,回答问题。(28分)材料一巴西、俄罗斯、印度、*、南非五国的英文名称的首字母合起来写为“BRICS”,五国被称为“金砖国家”。2013年3月26日至27日,金砖国家领导人第五...
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发表于:2019-09-01
问题详情:某些化学键的键能如下表所示(单位kJ·mol-1):H-HBr-BrI-ICl-ClH-ClH-IH-Br键能436.0193.7152.7242.7431.8298.7366(1)1molH2在2molCl2中燃烧,放出的热量为_______________kJ。(2)在一定...
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发表于:2018-01-19
ThehardwaredesignforanISDNmultiBRIdeviceRESEARCHONSTRUCTURALSIMULATIONANALYSISFORENTIREBRIDGEOFLONG-SPANSTONEARCHBRIDGEBRIserviceisprovidedoveralocalcopperloopthattraditi...
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发表于:2021-08-03
问题详情: 用所给词的适当形式填空1.Thesupermarketison(five)Avenue.2.BridgeStreetisagoodplace(have)fun.3.Go(cross)theroad,you’llfindthesupermarketeasily.4.Youcanfindthesup...
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发表于:2019-06-06
问题详情:EnglishisspokenasafirstlanguagebymostpeopleintheUSA,Britain,Australia,NewZealand,IrelandandCanada.However, 1 .Itisthemainlanguageinover60countries,includingIndi...