In the late 1960’s, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers were widely criticized. Ecologists pointing (1) that a cluster of tall buildings in a city often overburdens public transportation and parking lot (2) .
Skyscrapers are also enormous (3) , and wasters, of electric power. In one recent year, the addition (4) 17 million square feet of skyscraper office space in New York City raised the (5) daily demand for electricity by 120,000 kilowatts— enough to (6) the entire city of Albany for a day. Glass-walled skyscraper can be especially (7) . The heat loss (or gain) through a wall of half-inch plate glass is more than ten times (8) through a typical masonry wall filled with insulation board. To lessen the strain (9) heating and air-conditioning equipment, (10) of skyscrapers have begun to use double-
A. wish
B. desire
C. secret
D. promise
In the late 1960’s, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers were widely criticized. Ecologists pointing (1) that a cluster of tall buildings in a city often overburdens public transportation and parking lot (2) .
Skyscrapers are also enormous (3) , and wasters, of electric power. In one recent year, the addition (4) 17 million square feet of skyscraper office space in New York City raised the (5) daily demand for electricity by 120,000 kilowatts— enough to (6) the entire city of Albany for a day. Glass-walled skyscraper can be especially (7) . The heat loss (or gain) through a wall of half-inch plate glass is more than ten times (8) through a typical masonry wall filled with insulation board. To lessen the strain (9) heating and air-conditioning equipment, (10) of skyscrapers have begun to use double-
A. at
B. to
C. out
D. towards
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