[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ft1vK7C6r2lUb9f4wAnPZQaxzmbbcMTuNkGb99ulugdM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2023-10-25 18:56:56",101517939,[8,9,10,11],"121.5 MHz and 2,045 kHz","Ch 70 (156.525 MHz) and 2,174.5 kHz","Ch 11 (156.650 MHz) and 2,021 kHz","Ch 16(156.800 MHz) and 2,182 kHz",{"courseId":13,"courseImg":14,"courseName":15},"307392648a4732b391cef14fbbf904c5","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7e2d5ad53be3d12aacc56ee37db405b7.jpg","GMDSS 英语","Which are the preferred frequencies in radiotelephony for on-scene communications",[18,29,38,47,56,65,74,83,92,95],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],101517909,[22,23,24,25],"station","relaying","geostationary","standstill","The INMARSAT system utilizes ______ satellites positioned above four ocean regions","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],101517911,[33,34,35,36],"3","4","2","5","The satellite and support facilities operated by INMARSAT are basedon ______ operational regions",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],101517913,[42,43,44,45],"together with","besides","including","except","The satellites in the INMARSAT system virtually cover the globe as far as about75° ______ the polar regions",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],101517915,[51,52,53,54],"common channel for pilot service","aircraft calling channel","international distress and safety channel","navigation safety communication channel","The VHF Ch16 is called ______",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":27,"type":28},[],101517923,[60,61,62,63],"VHF","MF","HF","SES","Which equipment is required to be carried in the all sea areas",{"answer":66,"createTime":5,"id":67,"options":68,"question":73,"source":27,"type":28},[],101517926,[69,70,71,72],"FAX","DSC","NBDP","SSB","The VHF Ch70 could be used to send ______",{"answer":75,"createTime":5,"id":76,"options":77,"question":82,"source":27,"type":28},[],101517933,[78,79,80,81],"Ch 06 DSC","Ch 06 radiotelephony","Ch 11 radiotelephony and Ch 16 DS","Ch 70 DSC","Which one of the following channels and modes should be used when initiating a distress alert transmission",{"answer":84,"createTime":5,"id":85,"options":86,"question":91,"source":27,"type":28},[],101517937,[87,88,89,90],"VHF Channel 16 on 156.800 MHz","MF radiotelephony on 2,182 kHz","NBDP on 2,182.0 kHz","VHF-Ch 16 on 156.800 MHz and MF radiotelephony on 2,182 kHz","Which of the following frequencies have not been designated for on-scene communications in the Global Maritime Distress and Safety System",{"answer":93,"createTime":5,"id":6,"options":94,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":27,"type":28},[],101517942,[99,100,101,102],"VHF FM Ch 16 on 156.6 kHz","HF radiotelephony on 2, 182,0 kHz","NBDP on 2,175.4 kHz, VHF-FM Ch 16.on 156.6 MHz","VHF-Ch 16 on 156.8 MHz, NBDP on 2,174.5 kHz","Which of the following requencies has been designated for on-scene communications in the Global Maritime Distress and Safety System"]