题目内容

The first important lesson of the World Trade Center collapse is that tall buildings can withstand the impact of a large jetliner. The twin towers were supported by 59 perimeter columns on each side. Although about 30 of these columns, extending from four to six floors, were destroyed in each building by the impact, initially both towers remained standing. Even so, the death toll (代价) was about-2 245 people lost their lives.
I was once asked, how tall buildings should be designed given what we'd learned from the World Trade Center collapse. My answer was, "Lower." The question of when a tall building becomes unsafe is easy to answer. Common aerial fire-fighting ladders in use today are 100 feet high and can reach to about the 10th floor; So fires in buildings up to 10 stories high can be fought from the exterior (外部). Fighting fires and evacuating occupants above that height depend on fire stairs. The taller the building, the longer it will take for firefighters to climb to the scene of the fire. So the simple answer to the safety question is "Lower than 10 stories."
Then why don't cities impose lower height limits? A 60-story office building does not have six times as much rentable space as a 10-story building. However, all things being equal, such a building will produce four times more revenue and four times more in property taxes. So cutting building heights would mean cutting city budgets.
The most important lesson of the World Trade Center collapse is not that we should stop building tall buildings but that we have misjudged their cost. We did the same thing when we underestimated the cost of hurtling along a highway in a steel box at 70 miles per hour. It took many years before seat belts, air hags, radial tires, and antilock brakes became commonplace. At first, cars simply were too slow to warrant concern. Later, manufacturers resisted these expensive devices, arguing that consumers would not pay for safety. Now we do-- willingly.
The first paragraph tells us that ______.

A. architecture is something more out of experience than out of theory
B. architecture depends just as much on experience as on theory
C. it is safer for people to live in old buildings
D. we learn not so much from our failure as from our success

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Which of the following statements can not be found in the passage?

A. Those opposed euthanasia say that they believe the right to live is sacred.
B. Those in favor of euthanasia maintain that they are for humane treatment.
C. Recently the advocates of euthanasia have got more support from the public.
D. More and more people like to have the law changed.

监理工程师在进行进度控制时,要明确进度计划不变是绝对的,变是相对的。 ()

A. 正确
B. 错误

What can you infer from the passage?

A. It is still skeptical why boys are better at mathematics than girls.
B. No one believes that girls are better at English than boys.
C. Evidence about this topic has been quite adequate.
D. There is no point in doing more research.

The example of Abby Coyle shows that ______.

A. she has taken great efforts to be good at both subjects
B. the main job of elementary school teachers is to see whether you are good at math or English
C. every student has to choose either math or English as his strong point
D. every student has to decide whether he or she will be good at math or English

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