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  3. Scientists have developed a slimming (减肥) drug that successfully suppresses appetite and results in a dramatic loss of weight wi

Scientists have developed a slimming (减肥) drug that successfully suppresses appetite and results in a dramatic loss of weight wi

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问题     Scientists have developed a slimming (减肥) drug that successfully suppresses appetite and results in a dramatic loss of weight without any apparent ill effects.
    The drug interferes with appetite control and prevents the build-up of fatty tissue. Laboratory mice given the drug lost up to a third of their total body weight.
    Within 20 minutes of being given the drug, called C75, the mice lost interest in eating and survived apparently content on just 10 percent of the food they would normally eat.
    As a result, mice taking the drug lost 45 percent more weight than mice fed the same amount of food, which compensate for the lack of food by becoming more lazy.
    Scientists, from the Johns Hopkins University in Baltimore, said that C75 is likely to produce a similar effect on humans because appetite control in brain is thought to be based on the same chemical pathways as those in mice.
    "We are not claiming to have found a fabled (神奇的) weight-loss drug. What we have found, using C75, is a major pathway in the brain that body uses naturally in regulating appetite at least in mice," said Francis Kuhajda, a pathologist and senior team member.
C75 is likely to produce weight-loss effect on humans because______.
选项 A、mice and humans have similar brain structure
B、humans are likely to be more lazy than mice
C、human’s appetite is regulated through the same pathway as mice’ s
D、mice and human body use different pathways of appetite control
答案C
解析 事实细节题。根据文中倒数第二段“…because appetite control in brain is thought to be based on the same chemical pathways as those in mice”可知，与老鼠相同的是，人的大脑会通过同样的生化途径控制食欲，故选C项。
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