题目内容
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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____ 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
jiézhànɡ 结账 means（）
Which of the following is not a primary organ of the digestive system（）
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