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.
21. One reason why the loss of lives in the Los Angeles earthquake was comparatively low is that _________.
A) new computers had been installed in the buildings
B) it occurred in the residential areas rather than on the highways
C) large numbers of Los Angeles residents had gone for a holiday
D) improvements had been made in the construction of buildings and highways
22. The function of the computer mentioned in the passage is to _____.
A) counterbalance an earthquakes action on the building
B) predict the coming of an earthquake with accuracy
C) help strengthen the foundation of the building
D) measure the impact of an earthquakes vibrations
23. The smart buildings discussed in the passage ______
A) would cause serious financial problems
B) would be worthwhile though costly
C) would increase the complexity of architectural design
D) can reduce the ground vibrations caused by earthquakes
24. It can be inferred from the passage that in minimizing the damage caused by earthquakes attention should be focused on _______.
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