GMAT 07套-Q37 考题|逻辑|CR|博森|王可达
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作者:passion
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发布时间: 2015-06-05
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8122 次浏览
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Rabbits
were introduced to Numa Island in the nineteenth century.
Overgrazing by the enormous population of rabbits now menaces the
island's agriculture. The government
proposes to reduce the population by using a virus that has caused devastating
epidemics in rabbit populations elsewhere.
There is, however, a chance that the virus will infect the bilby, an
endangered native marsupial. The
government's plan, therefore, may serve the interests of agriculture but will
clearly increase the threat to native wildlife.
Which
of the following, if true, most seriously weakens the argument?
A) There is less chance that the virus
will infect domestic animals on Numa than that it will infect bilbies.
B) There are no species of animals on
the island that prey on the rabbits.
C) Overgrazing by rabbits endangers
many of the plants on which bilbies feed.
D) The virus that the government
proposes to use has been successfully used elsewhere to control populations of
rabbits.
E) There is no alternative means of
reducing the rabbit population
that would involve no threat to the bilby.
