[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fZ5Vd4txhJhJmwuIwwmhN1rZBi3XGXn-ewyDYV_2zftE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":13,"related":14,"source":18,"type":19},[],"2025-01-11 08:18:06",1064591988,[8,9],"对","错",{"courseImg":11,"courseName":12},"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb08a353b0dfc60dc6f890a2e9b036890.jpg","[共享课]Introduction to Railway","The quasi-movable block adopts hierarchical speed control mode. ( )",[15,20,31,36,46,51,60,69,74,79],{"answer":16,"createTime":5,"id":6,"options":17,"question":13,"source":18,"type":19},[],[8,9],"v2",3,{"answer":21,"createTime":22,"id":23,"options":24,"question":29,"source":18,"type":30},[],"2025-01-11 08:18:05",1064592011,[25,26,27,28],"GMS services","Special railway services","Voice services","Data services","What are the services of GSM-R classified into? ( )",1,{"answer":32,"createTime":5,"id":33,"options":34,"question":35,"source":18,"type":19},[],1064592031,[8,9],"The semi-automatic block has high train operation safety level. ( )",{"answer":37,"createTime":22,"id":38,"options":39,"question":44,"source":18,"type":45},[],1064592037,[40,41,42,43],"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":47,"createTime":22,"id":48,"options":49,"question":50,"source":18,"type":19},[],1064592039,[8,9],"The obstruction signal annunciator has only one red light. ( )",{"answer":52,"createTime":22,"id":53,"options":54,"question":59,"source":18,"type":30},[],1064592061,[55,56,57,58],"Advanced communication technology","Automatic control technology","Wireless communication","Wireless positioning technology","What technologies are used in movable block? ( )",{"answer":61,"createTime":22,"id":62,"options":63,"question":68,"source":18,"type":30},[],1064592063,[64,65,66,67],"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":70,"createTime":5,"id":71,"options":72,"question":73,"source":18,"type":19},[],1064592090,[8,9],"Medium maintenance only focuses on minor repairs. ( )",{"answer":75,"createTime":5,"id":76,"options":77,"question":78,"source":18,"type":19},[],1064592096,[8,9],"Overhaul is conducted more frequently than medium maintenance. ( )",{"answer":80,"createTime":22,"id":81,"options":82,"question":87,"source":18,"type":30},[],1064592098,[83,84,85,86],"Many nodes","Long lines","Networked layout","Multiple levels and categories","What are the characteristics of railway communication? ( )"]