[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fFkCnw20T1Sppui1mJMUH_g87569oeiwiLZIn8oCflBQ":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":15,"related":16,"source":25,"type":36},[],"2025-01-11 08:18:05",1064592098,[8,9,10,11],"Many nodes","Long lines","Networked layout","Multiple levels and categories",{"courseImg":13,"courseName":14},"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb08a353b0dfc60dc6f890a2e9b036890.jpg","[共享课]Introduction to Railway","What are the characteristics of railway communication? ( )",[17,27,37,42,52,57,66,75,80,85],{"answer":18,"createTime":19,"id":20,"options":21,"question":24,"source":25,"type":26},[],"2025-01-11 08:18:06",1064591988,[22,23],"对","错","The quasi-movable block adopts hierarchical speed control mode. ( )","v2",3,{"answer":28,"createTime":5,"id":29,"options":30,"question":35,"source":25,"type":36},[],1064592011,[31,32,33,34],"GMS services","Special railway services","Voice services","Data services","What are the services of GSM-R classified into? ( )",1,{"answer":38,"createTime":19,"id":39,"options":40,"question":41,"source":25,"type":26},[],1064592031,[22,23],"The semi-automatic block has high train operation safety level. ( )",{"answer":43,"createTime":5,"id":44,"options":45,"question":50,"source":25,"type":51},[],1064592037,[46,47,48,49],"Infrared temperature measurement","Acoustic diagnosis","Hydraulic detection","High-speed camera","Which technology is NOT mentioned as part of the safety monitoring system for MU operations? ( )",0,{"answer":53,"createTime":5,"id":54,"options":55,"question":56,"source":25,"type":26},[],1064592039,[22,23],"The obstruction signal annunciator has only one red light. ( )",{"answer":58,"createTime":5,"id":59,"options":60,"question":65,"source":25,"type":36},[],1064592061,[61,62,63,64],"Advanced communication technology","Automatic control technology","Wireless communication","Wireless positioning technology","What technologies are used in movable block? ( )",{"answer":67,"createTime":5,"id":68,"options":69,"question":74,"source":25,"type":36},[],1064592063,[70,71,72,73],"It is an important part of the national economy","It creates value and increases social wealth","The products cannot be stored or accumulated","It has high initial investment","What are the characteristics of the transportation industry? ( )",{"answer":76,"createTime":19,"id":77,"options":78,"question":79,"source":25,"type":26},[],1064592090,[22,23],"Medium maintenance only focuses on minor repairs. ( )",{"answer":81,"createTime":19,"id":82,"options":83,"question":84,"source":25,"type":26},[],1064592096,[22,23],"Overhaul is conducted more frequently than medium maintenance. ( )",{"answer":86,"createTime":5,"id":6,"options":87,"question":15,"source":25,"type":36},[],[8,9,10,11]]