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The abbreviation COPD stands for____（）
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The smooth triangular part at the base of bladder is called____（）
Read the following case report and answer the question. Mr. Green complained of dysphagia and dyspepsia. He stated these problems had been lasting for the past 6 months and were increasing in frequenc
____ is the portion of colon between the rectum and the descending colon（）
Read the following case report and answer the question. Mr. Green complained of dysphagia and dyspepsia. He stated these problems had been lasting for the past 6 months and were increasing in frequenc
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