要求以Traffic Problem为题目写一篇文章，内容包括以下几个要点： 1．城市交通的现状； 2．交通拥挤的

It's time something _________(do) about the traffic problem downtown.

A.adapt

B.advocate

C.address

D.admire

A.nothing to be done

B.everything is done

C.anything will be done

D.something was done

A.solve

B.address

C.resolve

D.deal

What is the author's main concern？

A．How to render automobiles pollution-free.

B．How to make smaller and safer automobiles.

C．How to solve the problem of traffic jams.

D．How to develop an automated subway system.

A．They are going to investigate into Bugs problem

B．Some of the Bugs are not usable any more

C．It is defenseless when it is hit by a heavy car

D．The Bugs is good for use

status LED on a Cisco Catalyst series switch is alternating green and amber. Which condition could this indicate（）。

A.The port is experiencing errors

B.The port is administratively disabled

C.The port is blocked by spanning tree

D.The port has an active link with normal traffic activity

A.问题-解决方案顺序 （problem-solution order）

B.因果顺序（cause-effect order）

C.话题顺序（topical order)

D.比较优势顺序(comparative advantages order)

growing US cities have simply built more roads. But traffic experts say building more roads is a quick-fix solution that will not alleviated the traffic problem in the long run. Soaring land costs, increasing concern over social and environmental disruptions caused by road building, and the likelihood that more roads can only lead to more cars and traffic are powerful factors bearing down on a 1950s-style. construction program①.

The goal of smart-highway technology is to make traffic systems work at optimum efficiency by treating the road and the vehicles traveling on them as an integral transportation system. Proponents of the advanced technology say electronic detection systems, closed-circuit television, radio-communication, ramp metering variable message signing, and other smart-highway technology can now be used at a reasonable cost to improve communication between drivers and the people who monitor traffic②.

Pathfinder, a Santa Monica, California-based smart-highway project in which a 14-mile stretch of the Santa Monica Freeway, making up what is called a "smart corridor," is being instrumented with buried loops in the pavement. Closed-circuit television cameras survey the flow of traffic; while communication linked to property equipped automobiles advise motorists of the least congested routes or detours.

Not all traffic experts, however, look to smart-highway technology as the ultimate solution to traffic gridlock. Some say the high-tech approach is limited and can only offer temporary solutions to a serious problem.

"Electronics on the highway addresses just one aspects of the problem: how to regulate traffic more efficiently," explains Michael Renner, senior researcher at the world-watch Institute. "It does not deal with the central problem of too many cars for roads that cannot be built fast enough. It sends people the wrong message. They start thinking 'yes, there used to be a traffic congestion problem, but that's been solved now because we have advanced high-tech system in place." Larson agrees and adds, "Smart highway is just one of the tools that we use to deal with our traffic problems. It is not the solution itself, just pan of package. There are different strategies."

Other traffic problem-solving options being studied and experimented with include car-pooling, rapid mass-transit systems, staggered or flexible work hours and road pricing, a system whereby motorists pay a certain amount for the time they use a highway③.

It seems that we need a new, major thrust to deal with the traffic problems of the next 20 years. There has to be a big change and a long way to go.

The compound word "quick-fix' (Line 2, Para. 1 ) is closest in meaning to ______.

A．an optional solution

B．an expedient solution

C．a ready solution

D．an efficient solution