【单选题】{{B}}第二篇{{/B}}
More than 60 people died in this earthquake.By comparison, an earthquake of similar intensity that shookAmerica in 1988 claimed 25,000 victims.
Injuries and deaths were relatively less in LosAngeles because the quake occurred at 4:31A、m. On a holiday, when traffic was light on the city’s highways. In addition, changes made to the construction codes in LosAngeles during the last 20 years have strengthened the city’s buildings and highways, making them more resistant to quakes.
Despite the good news, civil engineers aren’t resting on their successes. Pinned to their drawing boards are blueprints for improved quake - re - sistant buildings. The new designs should offer even greater security to cities where earthquakes often take place.
In the past, making structures quake-resistant meant firm yet flexible materials, such as steel and wood, that bend without breaking. Later, people tried to lift a building off its foundation, and insert rubber and steel between the building and its foundation to reduce the impact of ground vibrations. The most recent designs give buildings brains as well as concrete and steel supports.Called smart buildings, the structures respond like living organisms to an’ earthquake’s vibrations. When the ground shakes and the building tips forward, the computer would force the building to shift in the opposite direction.
The new smart structures could be very expensive to builD、However, they would save many lives and would be less likely to be damaged during earthquakes.
B．help strengthen the foundation of the building
C．predict the coming of an earthquake with accuracy
D．counterbalance an earthquake’s action on the building
网考网参考答案：D
网考网解析：
根据文章第五段，最近建筑设计不仅使用钢筋混凝土作建筑物支架，还要给建筑物安装“大脑”，这种建筑物被称为“智能型建筑物”。它可以像活的生物一样对地震做出反应。当地震时，建筑物向前倾斜时，计算机就迫使建筑物向相反的方向倾斜，即转向后方。A意为：测量地震的震动影响。B意为：帮助加固建筑物地基。C意为：准确预测地震的发生。D意为：平衡地震对建筑物的作用力。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>
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