City Basics: Four Difficulties, 4000 Levels
City Basics has four difficulties with 1000 levels each and ten questions per level; see people before choice. City levels ask for population, transport or services; identify the urban system first.
城市基础闯关City Basics1000 关城市基础进阶闯关City Intermediate1000 关城市基础高阶闯关City Advanced1000 关城市基础挑战闯关City 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.