Traffic jams are not only annoying but also ____________. The extra time and fuel wasted be- cause of traffic congestion add up to almost $_________________.

They also engaged in human ________　and organized prostitution. A: traffic B: trafficking C: transportation D: transferring

No.8. The police will also have special emergency powers to close roads and ____ traffic to prevent jams. (diversion)

With so much traffic on the road, the ____ is also taking longer and longer. A: daily communicate B: daily commute C: dairy commute

I’m ____saw the accident, ____told the traffic police what I have seen. A: not only, but also B: not, but C: as, as D: more, than

It also allows instrument approaches to be made procedurally at airports where air traffic control does not use ____or in the case of ____ failure. A: radio B: communication C: electricity D: radar

Although we complain when our plane isn't ____(按期) or when we have to wait in a traffic jam, we also complain about always being in a hurry.

Which two statements are true about traffic shaping and traffic policing？（） A: both traffic shaping and traffic policing cause retransmissions of connection-oriented protocols such as TCP B: both traffic shaping and traffic policing support the marking and re-marking of traffic C: the effects of traffic shaping and traffic policing when configured on a router are applied to outgoing traffic D: traffic shaping queues excess traffic whereas traffic policing discards excess traffic E: traffic shaping allows the traffic to exceed the bit rate whereas traffic policing prevents the traffic from exceeding the bit rate

The following are not road traffic signals ( ). A: traffic light B: traffic sign C: traffic information board D: traffic police command

Children should be taught to read __________ A: traffic signs B: traffic island C: traffic jam D: traffic police