参考
交通标志库
复习理论备考中常见的警告、管制和指路标志。
If you are traveling at a speed of 80km/h, how many vehicle(s) length at least should be adhered to between your vehicle and the vehicle in front?
已完成 35%
正确答案为什么对：
本题考查什么
For the question "If you are traveling at a speed of 80km/h, how many vehicle(s) length at least should be adhered to between your vehicle and the vehicle in front?", the correct answer is "5" because the basic rule is to maintain at least one vehicle length for every 16km/h of your vehicle speed.
官方来源： Singapore Police Force Online Learning Portal: Basic Theory of Driving
主题
车速与车距
限速、安全跟车距离、两秒规则，以及刹车距离。
道路知识
理论考试指南
在下一轮练习前，复习考试顺序、临时驾照时间和学习结构。
罚则
记分制（DIPS）
把规则知识与真实驾驶中重要的门槛和违例类型对应起来。