PROBLEM A: The Keep-Right-Except-To-Pass RuleIn countries where driving automobiles on the right is the rule (that is, USA, China and most other countries except for Great Britain, Australia, and some former British colonies), multi-lane freeways often employa rule that requires drivers to drive in Read More
posted @ 2014-02-07 09:53 瓶哥 Views(2865) Comments(0) Diggs(0) Edit