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单选题 What defines a great circle? ( )
学科：默认课程
时间：2025-12-17 09:33:34
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题目1单选题
Every new supplement to the Sailing Directions _______ the previous one. ( )A. enforcesB. cancelsC. correctsD. replenishes
题目2单选题
The velocity of the apparent wind can be more than the true wind, and come from the same direction, if certain conditions are present. One condition is that the _____.( )A. ship's speed must be less than the true wind velocityB. true wind must be from dead asternC. true wind velocity must be faster than the ship's speedD. true wind must be from dead ahead
题目3单选题
All straight lines represent great circle tracks on a chart based on a (n) _______.( )A. Mercator projectionB. polyconic projectionC. orthographic projectionD. gnomonic projection
题目4单选题
When a buoy is in position only during a certain period of the year, where may the dates when the buoy is in position be found? ( )A. Light ListB. Notices to MarinersC. On the chartD. Coast Pilot
题目5单选题
A tropical storm is building strength some distance from your ship. Waves are coming from the east, with periods increasing from 5 seconds to 15 seconds. The swell is from the east. Where was the storm when these new swells were generated? ( )A. To the north of youB. To the south of youC. To the east of youD. To the west of you
题目6单选题
It is dangerous to _______ in the N coast of France due to mines laid. ( )A. anchor or fishB. tow two vessels asternC. cross the Dover StraightD. get alongside
题目7单选题
Advise _______ your fishing gear. ( )A. you recoveryB. you recoverC. you recoveringD. you recovered
题目8单选题
Alignment and light sectors used in Admiralty Sailing Directions are given seen from _______.( )A. landB. seaC. vesselD. air
题目9单选题
Which of the following weather report is of 12-24 hours period? ( )A. WarningB. ForecastC. SynopsisD. Depression
题目10单选题
Haze is not caused by _______.( )A. forest firesB. smoke from industrial areasC. dust or sand stormsD. water droplets with the relative humidity more than 95%
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