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The Prime Minister refused to __________ on the rumor that he had planned to give up his position.

A. relate
B. frown
C. comment
D. catch

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Passage 1Questions 16 to 20 are based on the following passage: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 pointed out that a cluster of tall buildings in a city often overburdens public transportation and parking lot capacities.Skyscrapers are also lavish (浪费的) consumers, and wasters, of electric power. In one recent year, the addition of 17 million square feet of skyscraper office space in New York City raised the peak daily demand for electricity by 120,000 kilowatts—enough to supply the entire city of Albany, New York, for a day.Glass-walled skyscraperscan be especially wasteful. The heat loss or gain through a wall of half-inch plate glass is more than ten times that through a typical masonry (砖石) wall filled with insulation board. To lessen the strain on heating and air-conditioning equipment, builders of skyscrapers have begun to use double-glazed panels of glass, and reflective glasses coated with silver or gold mirror films that reduce glare as well as heat gain. However, mirror-walled skyscrapers raise the temperature of the surrounding air and affect neighboring buildings.Skyscrapers put a severe strain on a city’s sanitation facilities, too. Skyscrapers also interfere with television reception, block bird flyways, and obstruct air traffic. In Boston in the late 1960’s, some people even feared that shadows from skyscrapers would kill the grass on Boston Common.Still, people continue to build skyscrapers for all the reasons that they have always built them—personal ambition, civic pride, and the desire of owners to have the largest possible amount of rentable space.Question:What’s the main purpose of the passage?

A. To discuss the effect of skyscrapers on the environment.
B. To compare skyscrapers with other modern structures.
C. To support the use of masonry in the construction of skyscrapers.
D. To illustrate some architectural designs of skyscrapers.

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According the passage, what is one disadvantage of skyscrapers that have mirrored walls?

A. The surrounding air is heated.
B. They produce more glare for those inside the skyscrapers.
C. The construction time and cost are increased.
D. Extra air-conditioning equipment is needed.

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According to the passage, in the late 1960’s which aspect of skyscrapers were some residents of Boston concerned with?

A. The harmful effects on the city’s grass.
B. The noise from their construction.
C. The removal of trees from building sites.
D. The high cost of rentable office space.

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Which of the following groups would be most concerned with the issues that the author raises?

A. Electricians.
B. Manufacturers.
C. Environmentalists.
D. Gardeners.

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The Prime Minister refused to __________ on the rumor that he had planned to give up his position.

A. relate B. frown C. comment D. catch

According the passage, what is one disadvantage of skyscrapers that have mirrored walls?

According to the passage, in the late 1960’s which aspect of skyscrapers were some residents of Boston concerned with?

Which of the following groups would be most concerned with the issues that the author raises?

A. relate
B. frown
C. comment
D. catch