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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 doctor’s 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.
Doctors said that Lorenzo might die within three years because______.
选项 A、they had never treated the disease before
B、Lorenzo was too young to be cured
C、no cure had been found for ALD
D、ALD was a rare disease
答案C
解析 细节题。由文章首段第二句Doctors explained that there was no cure for ALD，and that he wouldprobably die within three years．(医生解释说当前还没有治愈ALD的方法，因此他很可能在3年内死亡。)可推知答案为C)。
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