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海事统计表明，还难事故频发的主要原因是人为因素和人为过失导致的。Maritime statistics show that the main causes of frequent accidents are human factors and human negligence.

A. 正确 True
B. 错误 False

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天文定位通过观测等天体的高度确定船位。Celestial position fixing determines the ship position by observing the altitude of and other celestial bodies.

A. 太阳 Sun
B. 月亮 Moon
C. 部分行星 Some planets
D. 部分恒星 Some stars

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DGPS可以有效消除____ 、和等各种因素的影响，达到米级定位精度。 The DGPS can effectively eliminate the influence of,_,___and other factors, and achieve meter-level positioning accuracy.

A. 方位和距离误差 Azimuth and distance errors
B. 星历误差 Ephemeris error
C. 卫星时钟误差 Satellite clock error
D. 电离层延迟误差 Ionospheric delay error

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航行计划须经_审核、批准后正式确认。the voyage plane must be checked and confirmed by_

A. 船长 master
B. 大副 chief officer
C. 二副 second officer
D. 三副 third officer

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确定燃料装载量应考虑的几个因素包括Several factors to be considered in determining fuel loads include

A. 航程、航速以及影响航速的水文气象等因素； Voyage, speed
B. 本船的航海性能，如吃水差和船壳附生物的阻力等因素；performance of the ship, such as trim and resistance of hull organisms, etc.
C. 主机之外的其他燃料及轮机长的意见；Fuel and views of the chief engineer
D. 过去使用燃料的记录；Past fuel use records;

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海事统计表明，还难事故频发的主要原因是人为因素和人为过失导致的。Maritime statistics show that the main causes of frequent accidents are human factors and human negligence.

A. 正确 True B. 错误 False

天文定位通过观测等天体的高度确定船位。Celestial position fixing determines the ship position by observing the altitude of and other celestial bodies.

DGPS可以有效消除________ 、________ 和________ 等各种因素的影响，达到米级定位精度。 The DGPS can effectively eliminate the influence of______,_______,_______and other factors, and achieve meter-level positioning accuracy.

航行计划须经_____审核、批准后正式确认。the voyage plane must be checked and confirmed by_____

确定燃料装载量应考虑的几个因素包括Several factors to be considered in determining fuel loads include

A. 正确 True
B. 错误 False

DGPS可以有效消除____ 、和等各种因素的影响，达到米级定位精度。 The DGPS can effectively eliminate the influence of,_,___and other factors, and achieve meter-level positioning accuracy.

航行计划须经_审核、批准后正式确认。the voyage plane must be checked and confirmed by_