2.B铜线缠绕成线圈通上交流电，才能在线圈中产生变化的磁场，根据法拉第电磁感应定律，磁通量变化金属柱体内才会产生涡流，实现对金属的隔空加热，A错误，B正确...

2.CA项，缩小体积，2○、H2的浓度均增大，不符合题意；B项，缩小体积，生成物的浓度增大，不符合题意；C项，根据K。=c(CO2),温度不变，K不变，c(CO2)不变，符合题...

2.D细节理解题。根据第三段"In fact,much of the advice the hotline provides is via phone or video-chat;volunteers are sent out into the field in certain...

2:C段落大意题。通读第五段可知，本段主要介绍了研究结果。3.C观点态度题。根据最后一段“Jewett adds she feels safer when she wears her hearing aid since sh...

2.D中哈霍尔果斯国际边境合作中心跨境电商“空中陆桥”启动，“一带一路”向纵深推进，新疆霍尔果斯的开放层次不断提升，口岸贸易更加扩展，以往的“通道经济”已逐步...

3.C(“认为齐晋同时出兵一定会击败吴军”错误，文中“其骑上锐兵弊乎齐，重器羽旄尽乎晋”意思是“吴国的精锐之师和宝器仪仗，先在齐国受到损伤，后又在晋国消耗殆尽”...

2.B据题设分析知，①③正确，②错误.故选B.3.D这组数据按从小到大的顺序排列为10,11,12,12,13,14,15,15,16,17,17,18，因为12X80%=9.6,所以这组数据的第80百分位数是...

2.D细节理解题。根据Maiden's Tower一节中“At the southern entrance to Bosphorus Strait is Maiden'sTower..”可知答案。 3.A推理判断题。根据Bosphorus Str...

3:C细节理解题。根据第四段“Most recently,NASA celebrated the Webb's one year anniversary by releasingone of its latest images.”可知，美国国家航空航天局...

2.C细节理解题。根据Liu Xiaodong:Your Friends部分“Also on show is a90-minute-long documentary(纪录片)that takes the audience to Liu's hometown,Jincheng...

2.CGaF3晶体属于离子晶体，A项错误；GCl3中Ga的杂化方式为sp,B项错误；Gaz Cls(Ga)中存在配位键，C项正确；基态Ga原子的核外电子排布式为[Ar]3d04s24p',D项错误...

2.A缬氨霉素水解后的产物有三种：CH:CHCHCOOH、CH3 CHCHCOOH和CH3 CHCOOH。HC NH2HC OHOHCH,CHCHCOOH和CH,CHCOOH互为同系物。H;C OHOH 3.B糖类是否属于还原型...