[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fHQDpSbGZgKFv1ewsIVZuoAKGGwt0J7dj_BQwLxzV14I":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2023-10-24 09:43:17",101342954,[8,9,10,11],"对于相同水域范围而言,光栅海图数据占有储存量小,矢量海图数据占有储存量大","光栅海图可以做询问式操作,矢量海图不可以做询问式操作","光栅海图既不能做询问式操作,也不能任意缩放其比例尺","光栅海图和矢量海图因存在图形变换后的失真,所以均不能任意缩放其比例尺",{"courseId":13,"courseImg":14,"courseName":15},"c779940de5c1bfebcd9161be828230ad","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","天文航海","关于光栅海图与矢量海图相比,正确的说",[18,29,38,47,56,65,68,77,87,96],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],101342941,[22,23,24,25],"RNC 为有边界海图","RNC 基于 WGS-84 坐标系","RNC 可以适当调整显示比例尺","RNC 不能设置安全水深进行强调性显示","RNC,下列说法错误的是_--","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],101342942,[33,34,35,36],"①②③","①②","①③","②④","根据 ECDIS 性能标准,ECDIS 应可以实现的计算功能为_-.①计算两点间的恒向线航向和航程;②计算两点间的大圆始航向和航程;③量取船与物标之间的距离和方位;④测定罗经差",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],101342945,[42,43,44,45],"光栅海图不是数字海图,因其是基于纸质海图的"扫描海图",不可能具有纸海图的同等精度","光栅海图可以通过与定位传感器( 如 GPS)等接口来加以改正,使用者可以对光栅海图做询问式操作","矢量海图所用的海图矢量数据不可能通过纸海图或其他纸质航海出版物获得,只能直接从专官方水道测量部门的电子海图数据库(ECDB)中获得","矢量海图因为图标数据的各种信息分层次存放,这意味着航海者可以手动查询不同图标的性质,也可指令系统自动完成这种查询","下列关于光栅海图和矢量海图正确的说法是_",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],101342949,[51,52,53,54],"光栅扫描海图可看作是纸质海图的复制品","光栅扫描海图可以进行选择性查询、显示和使用数据","矢量化海图是将数字化的海图信息分类存储的数据库","矢量化海图可以进行选择性查询、显示和使用数据","关于矢量化海图和光栅扫描海图,下列说法错误的是",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":27,"type":28},[],101342951,[60,61,62,63],"光栅扫描海图能够反映出纸质海图上的所有信息","光栅扫描海图是通过对纸质海图的光学扫描形成的数据信息文件","光栅扫描海图具有纸质海图同样的精度","光栅扫描海图的显示方向可以任意旋转","关于光栅扫描海图的特点,下列说法错误的是",{"answer":66,"createTime":5,"id":6,"options":67,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":27,"type":28},[],101342955,[72,73,74,75],"扫描图和印刷图","数码图与打印图","光栅图和矢量图","光栅图和数码图","按照制作方式与显示特点,目前使用的电子海图可分为---两大类",{"answer":78,"createTime":79,"id":80,"options":81,"question":86,"source":27,"type":28},[],"2023-10-24 09:43:18",101342956,[82,83,84,85],"C-Map 公司的 CM93 数据","Transas 公司的 TX97 数据","各国官方水道测量机构制作并发行的 ENC 数据","光栅航海图 RNC","是符合 IHO 相关标准《数字化水道测量数据传输标准》(S-57)的标准电子海图数据",{"answer":88,"createTime":79,"id":89,"options":90,"question":95,"source":27,"type":28},[],101342959,[91,92,93,94],". ①②",".①③",". ②③④",". ①③④","下列关于 ENC 属性的描述正确①根据国际标准进行编码和编制;②根据数字化分发的官方改正数据进行定期改正;③基于不同的坐标系;④内容的保证由各国海事局负责",{"answer":97,"createTime":79,"id":98,"options":99,"question":103,"source":27,"type":28},[],101342962,[100,91,101,102],". ①②③","②","①","下列关于 ENC 和 RNC 的说法正确①两者均由官方发行;②两者均由官方改正数据进行定期改正;③两者均具有替代纸海图的条件"]