单项选择题

It can be inferred from the passage that in minimizing the damage caused by earthquakes attention should be focused on______.

A．the increasing use of rubber and steel in capital construction
B．the development of flexible building materials
C．the reduction of the impact of ground vibrations
D．early forecasts of earthquakes
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单项选择题
The author's main purpose in writing the passage is to______.
A．compare the consequences of the earthquakes that occurred in the U.S.
B．encourage civil engineers to make more extensive use of computers.
C．outline the history of the development of quake-resistant building materials
D．report new developments in constructing quake- resistant building
单项选择题
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.
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