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如题，来自XDF讲义，纠结了一天了也没想明白，还望各位路过的童鞋们帮忙解答一下，不胜感激~~~
10.(Z)Consumers planning to buy recreational equipment tend to buy higher quality,more expensive equipment when the economy is strong than when it is
weak. Hill and Dale is a business that sells high-quality, expensive camping
and hiking equipment in Boravia. Although all the signs are that Boravia’s
economy is now entering a period of sustained strength, the managers
of the business do not expect a substantial increase in sales.
Which of the following, if true, would provide the strongest justification for the managers’ judgment?
A.A significant proportion of Hill and Dale’s sales are made tocustomers who enter the store in order to buy one particularitem but, once there, find other items to buy as well.
B.In Boravia when the economy is strong, those who mightotherwise go camping tend to take vacations overseas.
C.The economic upturn is likely to allow Boravia’s nati-onal parks, where most of the camping and hiking is done, to receive extra funding to improve their visitor facilities.
D.Advances in materials technology have led to thedevelopment of hiking and camping equipment thatis more comfortable and lightweight than before.
E.Many people in Boravia not only are committed to preserving the country’s wilderness areas but also are interested in spending some time in them.
我选的是B，不知道问什么A对了B错了。。。
13.(Z)In 1960’s studies of rats, scientists found that crowding increases the number of attacks among the animals significantly.But in recent experiments in which rhesus monkeys were placed in crowded conditions, although there was an increase in instances of
“coping” behavior—such as submissive gestures and avoidance of dominant individuals—attacks did not become any more frequent.Therefore it is not likely that, for any species of monkey, crowding increases aggression as significantly as was seen in rats.
Which of the following, if true, most strengthens the argument?
A.All the observed forms of coping behavior can be found among rhesus monkeys living in uncrowded conditions.
B.In the studies of rats, nondominant individuals were found to increasingly avoid dominant individuals when the animals were in crowded conditions.
C.Rhesus monkeys respond with aggression to a wider range of stimuli than any other monkeys do.
D.Some individual monkeys in the experiment were involved in significantly more attacks than the other monkeys were.
E.Some of the coping behavior displayed by rhesus monkeys is similar to ehavior rhesus monkeys use to bring to an end an attack that has begun.
我选了A，不知道为什么应该选D。。
14.(Z)It is crucially important to farmers that the herbicides they use to control weeds not damage their crops. One very effective herbicide is safe for corn, but soybeans are damaged even by the herbicide’s residue, which remains in the soil more than a year after the herbicide is applied. Soybeans and corn are not sown together in the sameriled;nevertheless, most farmers are reluctant to use the herbicide on their corn.
Which of the following, if true, provides the strongest justification for the farmers’ reluctance?
A. The residue of the herbicide in the soil a year after application is
not enough to control most weeds effectively.
B. To maintain the nutrients in the soil, corn and soybeans are oftenplanted in A riled in alternate years.
C. The demand for soybeans is growing faster than is the demand for corn.
D. For maximum yield, soybean plants are grown closer together to
each other than are corn plants.
E. The application of herbicides is less critical for soybean than forcorn crops.
我选的是B，不知道为什么正确答案是A。。
13.(Z)In 1960’s studies of rats, scientists found that crowding increases the number of attacks among the animals significantly.But in recent experiments in which rhesus monkeys were placed in crowded conditions, although there was an increase in instances of
“coping” behavior—such as submissive gestures and avoidance of dominant individuals—attacks did not become any more frequent.Therefore it is not likely that, for any species of monkey, crowding increases aggression as significantly as was seen in rats.
Which of the following, if true, most strengthens the argument?
A.All the observed forms of coping behavior can be found among rhesus monkeys living in uncrowded conditions.
B.In the studies of rats, nondominant individuals were found to increasingly avoid dominant individuals when the animals were in crowded conditions.
C.Rhesus monkeys respond with aggression to a wider range of stimuli than any other monkeys do.
D.Some individual monkeys in the experiment were involved in significantly more attacks than the other monkeys were.
E.Some of the coping behavior displayed by rhesus monkeys is similar to ehavior rhesus monkeys use to bring to an end an attack that has begun.
我选了A，不知道为什么应该选D。。
14.(Z)It is crucially important to farmers that the herbicides they use to control weeds not damage their crops. One very effective herbicide is safe for corn, but soybeans are damaged even by the herbicide’s residue, which remains in the soil more than a year after the herbicide is applied. Soybeans and corn are not sown together in the sameriled;nevertheless, most farmers are reluctant to use the herbicide on their corn.
Which of the following, if true, provides the strongest justification for the farmers’ reluctance?
A. The residue of the herbicide in the soil a year after application is
not enough to control most weeds effectively.
B. To maintain the nutrients in the soil, corn and soybeans are oftenplanted in A riled in alternate years.
C. The demand for soybeans is growing faster than is the demand for corn.
D. For maximum yield, soybean plants are grown closer together to
each other than are corn plants.
E. The application of herbicides is less critical for soybean than forcorn crops.
我选的是B，不知道为什么正确答案是A。。 |
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发表于 2011-9-8 10:07:05
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