题目内容

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

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

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The main purpose of the passage is to ______.

A. compare skyscrapers with other modern structures
B. describe skyscrapers and their effect on the environment
C. advocate the use of masonry in the construction of skyscrapers
D. illustrate some architectural designs of skyscrapers

We can conclude that ______.

A. civilization may be doomed if pollution is not controlled
B. pollution is more serious in Europe than it is in America
C. most people do not know that pollution is a serious problem
D. black snow is not so serious compared with white snow

Scientists have not yet determined ______.

A. all of the effects of pollution on the human body
B. how pollution can be controlled successfully
C. when the atmosphere first became polluted
D. how to wash the black snow clean

世界银行贷款项目采购程序的主要程序是( )。

A. 国际竞争性招标
B. 国内竞争性招标
C. 邀请招标
D. 询价

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