但路在何方，济南还不清楚，如此混乱更难以找到正确的出路。

排在前十位的还有：开元迪士尼、阿迪达斯、微软、索尼、佳能、米其林、奈飞和博世。根据整理后的数据，隧道每家企业都将按照总分100分进行打分。

问卷涵盖一系列问题，南洞探究消费者对各个国际企业的信任、尊重、好感和钦佩度。比如是否会购买其产品，展露对其进行投资，以及求职意向。上榜企业从全球50个国家、新颜7600多家、覆盖20个行业的消费者中比较熟知的众多跨国企业中选出。

企业声望管理研究及咨询公司声望研究院(ReputationInstitute，济南RI)发布2019全球企业声望100强排行榜(2019'sMostReputableCompaniesWorldwide)在全球消费者当中具有最佳声望的企业、开元产业经济观察家梁振鹏表示：开元企业老板亲自为公司站台，符合互联网经济时代企业推广特征，很多公司都在将企业LOGO和掌门人挂钩，让产品更有关注度，公司更有话题性，这是一种有效的营销方式。

过去成长快的时候是进来的多，隧道出去的少，现在反过来，一定是进来的少，出去的多。

他认为，南洞可能最近一两年里，前10名的厂商会有一部分离开PC市场。文献链接：展露Proximity-inducedsurfacesuperconductivityinDiracsemimetalCd3As2（Nat.Commun.2019，展露10(1):2217）团队介绍：修发贤课题组主要从事拓扑材料的生长、量子调控以及新型低维原子晶体材料的器件研究。

合成分布图显示随着块体内载流子耗尽和表面态与超导更强的耦合，新颜超导电流分布主要处于块体的上下表面，新颜可视为和二维量子自旋霍尔绝缘体中类似的更高维度的边界超导电流。济南内插图为四个器件的SEM示意图。

(a)左图为磁场沿平面外方向的Josephson结示意图，开元沿着x方向Cd3As2中充满了超导电流，并且沿z轴方向电流密度均匀分布。隧道 文献推荐：1)  ChengZhang,YiZhang,XiangYuan,ShihengLu,JingleiZhang,AwadheshNarayan,YanwenLiu,HuiqinZhang,ZhuoliangNi,RanLiu,EunSangChoi,AlexeySuslov,StefanoSanvito,LiPi,Hai-ZhouLu,AndrewC.Potter,FaxianXiu,QuantumHalleffectbasedonWeylorbitsinCd3As2,Nature,565,331–336(2019).2)  ChengZhang,ZhuoliangNi,JingleiZhang,XiangYuan,YanwenLiu,YichaoZou,ZhimingLiao,YongpingDu,AwadheshNarayan,HongmingZhang,TianchengGu,XuesongZhu,LiPi,StefanoSanvito,XiaodongHan,JinZou,YiShi,XiangangWan,SergeyY.SavrasovandFaxianXiu,UltrahighconductivityinWeylsemimetalNbAsnanobelts,NatureMaterials18,482(2019).3)  CeHuang,BenjaminT.Zhou,HuiqinZhang,BingjiaYang,RanLiu,HanwenWang,YiminWan,KeHuang,ZhimingLiao,EnzeZhang,ShanshanLiu,QingsongDeng,YanhuiChen,XiaodongHan,JinZou,XiLin,ZhengHan,YihuaWang,KamTuenLaw,FaxianXiu,ProximityinducedsurfacesuperconductivityinDiracsemimetalCd3As2,NatureCommunications10,2217(2019).4)  EnzeZhang,JinhuaZhi,YichaoZou,ZefangYe,LinfengAi,JiachengShi,CeHuang,ShanshanLiu,ZehaoLin,XinyuanZheng,NingKang,HongqiXu,WeiWang,LiangHe,JinZou,JinyuLiu,ZhiqiangMao,FaxianXiu,SignatureofquantumGriffithssingularitystateinalayeredquasi-onedimensionalsuperconductor,NatureCommunications9,4656(2018).5)  XiangYuan,ZhongboYan,ChaoyuSong,MengyaoZhang,ZhilinLi,ChengZhang,YanwenLiu,WeiyiWang,MinhaoZhao,ZefangYe,JiaxiangWang,JonathanLudwig,XiaoxingZhang,CuiShang,ZhengcaiXia,DmitrySerminov,XiaolongChen,ZhongWang,HugenYan,FaxianXiu,ChiralLandaulevelsinWeylsemimetalNbAswithmultipletopologicalcarriers,NatureCommunications9,1854(2018).6)  ChengZhang,AwadheshNarayan,ShihengLu,JingleiZhang,XiangYuan,YanwenLiu,Ju-HyunPark,EnzeZhang,WeiyiWang,ShanshanLiu,LongCheng,LiPi,ZhigaoSheng,StefanoSanvito,FaxianXiu,EvolutionofWeyl-orbitandquantumHalleffectinDiracsemimetalCd3As2,NatureCommunications8,1272(2017)7)  ChunhuiZhu,FengqiuWang*,YafeiMeng,XiangYuan,FaxianXiu*,HongyuLuo,YazhouWang,JianfengLi,XinjieLv,LiangHe,YongbingXu,JunfengLiu,ChaoZhang,YiShi,RongZhang,ShiningZhu,Arobustandtuneablemid-waveinfraredopticalswitchenabledbybulkDiracfermions,NatureCommunications8,14111(2017).8)  ChengZhang,EnzeZhang,WeiyiWang,YanwenLiu,Zhi-GangChen,ShihengLu,SihangLiang,JunzhiCao,XiangYuan,LeiTang,QianLi,ChaoZhou,TengGu,YizhengWu,JinZou,FaxianXiu,Room-temperaturechiralchargepumpinginDiracsemimetal,NatureCommunications8,1374(2017).9)  YanwenLiu,XiangYuan,ChengZhang,ZhaoJin,AwadheshNarayan,ChenLuo,ZhigangChen,LeiYang,JinZou,XingWu,StefanoSanvito,ZhengcaiXia,LiangLi,ZhongWang,FaxianXiu, ZeemansplittinganddynamicalmassgenerationinDiracsemimetalZrTe5,NatureCommunications7,12516(2016).10) JunzhiCao,SihangLiang,ChengZhang,YanwenLiu,JunweiHuang,ZhaoJin,Zhi-GangChen,ZhijunWang,QisiWang,JunZhao,ShiyanLi,XiDai,JinZou,ZhengcaiXia,LiangLi,FaxianXiu, LandaulevelsplittinginCd3As2underhighmagneticfields, NatureCommunications 6,7779(2015).本文由Isobel撰稿。