【简答题】Participants’ vehicles will be outfitted with radio frequency (RF) transponders. When a transponder is activated, it will initiate a computer query of the enrollment database and perform a lookout qu...
【简答题】阅读理解。 When a person passes through the customs (海关) between two countries, he would be questioned by a customs inspector (检查员). If a person brings in goods of great value, the inspector may ask him to...