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  3. When a rare disease ALD threatened to kill the four-year-old boy Lorenzo, his parents refused to give up hope. Doctors explained

When a rare disease ALD threatened to kill the four-year-old boy Lorenzo, his parents refused to give up hope. Doctors explained

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问题     When a rare disease ALD threatened to kill the four-year-old boy Lorenzo, his parents refused to give up hope. Doctors explained that there was no cure for ALD, and that he would probably die within three years. But Lorenzo’s parents set out to prove the doctors wrong.
    The parents devoted themselves to keeping their son alive and searching for a cure. But doctors and the families of other ALD patients often refused to take them seriously. They thought the efforts to find a cure were a waste of time, and drug companies weren’t interested in supporting research into such a rare disease.
    However, the parents still refused to give up and spent every available hour in medical libraries and talking to anyone who would help. Through trial and error (反复实验)， they finally created a cure from ingredients (调料) commonly found in the kitchen. The cure, named "Lorenzo’s Oil", saved the boy’s life. Despite the good results, scientists and doctors remained unconvinced. They said there was no real evidence that the oil worked and that the treatment was just a theory. As a result, some families with ALD children were reluctant to try it.
    Finally, the boy’s father organized an international study to test the oil. After ten years of trials, the answer is: the oil keeps ALD children healthy. (224 words)
From the passage we can conclude that______.
选项 A、doctors remain doubtful of the effectiveness of the cure
B、many ALD patients still refuse to use the oil
C、various cures have been found for ALD
D、the oil really works as a cure for ALD
答案D
解析 本题属于事实细节题。文章末句说“After ten years of trials，the answer is the oil keeps ALD children healthy．”(长达10年的试验最终证明：这种药物能使ALD病患儿童保持健康。)可见这种药物对ALD具有治愈效果。A“医生们仍旧对该药物的效果持怀疑态度”只是片面观点，不是最终结论；文中第三段末句所说的“reluctant”意为“不情愿”，并非“拒绝”，因此排除B；C“各种ALD的治疗方法均已找到”，文中没有提及。
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