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1. Because most hospitals suffer a chronic undersupply of physicians, patients must sometimes wait hours in the emergency room to see a doctor. Nurses should therefore perform initial examinations in hospital emergency rooms to determine which patients merit immediate treatment and which can wait until the emergency physicians have more time to see them. Which of the following is an assumption on which the argument above is based? A Hospitals should expand their medical staffs. B Physicians cannot be trained to perform initial examinations themselves. C Emergency rooms will run more smoothly if initial examinations are performed. D Hospitals are always fully staffed with nurses. E Nurses are competent to judge the severity of patients’ conditions.
2. Scientists have discovered a new species of butterfly that lives only in a small region of Central America and is active only at night. During the day, it rests in treetops, where its green color matches the foliage perfectly. Therefore, the scientists must have discovered the butterfly at night. The argument depends on which of the following assumptions? A The newly discovered butterfly is not related to any other species of butterfly. B There is no way for the scientists to detect the butterfly during the day. C No other butterfly species lives in this region of Central America. D The foliage in the butterfly’s habitat is completely green. E The butterfly cannot survive in areas outside of Central America.
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发表于 2021-7-22 06:46:43
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