回复：问北美遵纪守法的公民一个有趣的问题

I assume:
1. there's always a camera for each toll.
2. if the supervisor found out the problem..(one toll always collect less than others) he may check the video.
3. there may be an auto counter triggered by sensor.
4. internal control is always, always, a challenge

所有跟帖： 

• It is not your assume, it is -Gold- ♂ (542 bytes) () 09/23/2005 postreply 09:17:05

• 逻辑上讲 -间谍阿惊- ♀ (30 bytes) () 09/23/2005 postreply 12:57:52