[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fEm5w90itBbgft7TIYhxLy2KsypzsHWkBgz7a7PvbUWs":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2026-03-11 19:34:51",322062848,[8,9,10,11],"274°44¢.2W","085°15¢.8E","094°44¢.2E","061°57¢.8E",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},16,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_50555713","第2次测验(3\u002F11)","已知起航点经度l1=106°23¢.2E,到达点经度l2=168°21¢.0W,则两地间的经差Dl为________",[21,26,35,44,53,62,69,78,87,94],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],322062849,[30,31,32,33],"227°39¢.0E","047°39¢.0E","132°21¢.0W","132°21¢.0E","已知起航点经度l1=167°15¢.0E,两地间的经差Dl=60°24¢.0E,则到达点经度l2为________",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],322062850,[39,40,41,42],"012°38¢.6E","143°46¢.6E","012°38¢.6W","167°21¢.4W","已知到达点经度l2=168°12¢.6E,两地间的经差Dl=24°26¢.0W,则起航点经度l1为_________",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],322062851,[48,49,50,51],"34°24¢.8S","11°12¢.0S","35°24¢.8S","12°12¢.0N","已知起航点纬度j1=23°48¢.4S,到达点纬度j2=11°36¢.4S,则两地间纬差Dj为___________",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":24,"type":25},[],322062852,[57,58,59,60],"j=40°N,l=120°W","j=40°S,l=120°E","j=40°N,l=060°W","j=40°S,l=060°W","地球上某点j=40°N,l=120°E,则它与地轴的对称点是__________",{"answer":63,"createTime":5,"id":64,"options":65,"question":68,"source":24,"type":25},[],322062853,[66,66,67,67],"II","II、III","下列__________是建立大地坐标系时应明确的问题.I.确定椭圆体的参数;II.确定椭圆体中心的位置;III.确定坐标轴的方向",{"answer":70,"createTime":5,"id":71,"options":72,"question":77,"source":24,"type":25},[],322062854,[73,74,75,76],"要求输入的GPS接收机天线高度是基于地球椭圆体表面上的高度,而实际输入的是海面上的天线高度","要求输入的GPS接收机天线高度是基于地球椭圆体表面上的高度,而实际输入的是大地球体表面上的天线高度","航海人员输入的GPS接收机天线高度是基于地球圆球体表面上的高度","航海人员输入的GPS接收机天线高度是基于地球椭圆体表面上的高度","航海上的地理坐标是建立在地球椭圆体上的.海面上航行的船舶通过GPS定位前要求输入接收机天线高度,接收机将自动进行高度差改正.因此,下列说法中正确的是______",{"answer":79,"createTime":5,"id":80,"options":81,"question":86,"source":24,"type":25},[],322062855,[82,83,84,85],"I~II","II~III","I~III","I~IV","下列__________系统采用WGS-84地心坐标系.I.GPS;II.DGPS;III.ECDIS;IV.AIS",{"answer":88,"createTime":5,"id":89,"options":90,"question":93,"source":24,"type":25},[],322062856,[66,91,67,92],"II、IV","III、IV","英版海图的绘制基于下列_________大地坐标系.I.西安80;II.WGS-84;III.东京1918;IV.欧洲1950",{"answer":95,"createTime":5,"id":96,"options":97,"question":102,"source":24,"type":25},[],322062857,[98,99,100,101],"30º41.¢3S,15º12.¢9W","30º41.¢2S,15º12.¢7W","30º39.¢2S,15º02.¢3W","30º40.¢0S,15º11.¢5W","从海图上查得GPS船位修正的说明中有"Latitude 1.¢10 Southward,Longitude 0.¢4 Westward" 字样.GPS的经、 纬度读数为:30º40.¢2S,15º12.¢5W.则用于海图上定位的数据应为_________"]