Navigation Basics: Four Difficulties, 4000 Levels
Navigation Basics has four difficulties with 1000 levels each and ten questions per level; check the environment before choice. Navigation levels ask for charts, heading or collision rules; identify the hazard first.
航海基础闯关Navigation Basics1000 关航海基础进阶闯关Navigation Intermediate1000 关航海基础高阶闯关Navigation Advanced1000 关航海基础挑战闯关Navigation Challenge1000 关
How it works
- Start at the basic difficulty.
- Ten questions per level; clear one to unlock the next.
- Review at 1/3/7/14/30 days.
FAQ
Which difficulty?
Start at basic and move up when accuracy stays above 80%.
How many levels each?
1000.