[单项选择]The minerals boom has brought about an economic boom, which in turn has meant that real estate values have （） to record levels.
A. rose
B. raised
C. risen
D. been raising

[单项选择]The Enlightenment Movement brought about a revival of interest in the old classical works. This tendency is known as______.
A. Neo-classicism
B. Romanticism
C. Renaissance
D. Critical Realism

[单项选择]

Changes in regional climate brought about by large-scale deforestation in the eastern lowlands of Central America are affecting weather downwind in the mountains, imperiling ecosystems there.
The so-called cloud forests of Monteverde lie along the crest of Costa Rica’s Cordillera de Tilaran mountains. These habitats rely on the almost perpetual fog that forms as moisture-laden Caribbean winds rise up the eastern slopes of the mountains and pass through altitudes at which clouds condense, says Robert O. Lawton, an ecologist at the University of Alabama in Huntsville. The humidity in those breezes is enhanced by moisture expelled from the leaves of lowland forests.
By the early 1990s, more than a century of deforestation had left only 18% of the Costa Rican lowland forests east of the peaks untouched. The pastures that replaced forests don’t humidify the winds as well as forests do and are better at warming the atmosphere. As a result, the winds o
A. large-scale deforestation and the climate changes
B. ecosystems in the eastern lowlands
C. the cloud forests of Monterverde
D. Caribbean winds

[单项选择]The author may regard the change brought about by the dotcom downdraft as an opportunity to______.

[单项选择]What brought about the outcry for gun control laws in America


A. High murder rates and acute social tension.
B. The sports of hunting small game animals and birds.
C. The tragedy caused by guns which happened in a school.
D. The purpose of forbidding sportsmen from owning shotguns.

[单项选择]According to the rebel leader, what brought about the attacks


A. Disruption of laws.
B. Withdrawal of Russian forces.
C. Betrayal of Ingush forces.
D. Military intervention of Chechny

[单项选择]One of the great changes brought about by the knowledge society is that ______

[单项选择]What brought about the decline in the demand for American farm products


A. The impact of the Great Depression.
B. The shrinking of overseas markets.
C. The destruction caused by the First World War.
D. The increased exports of European countries.