第1题: [单项选择]关于空、回肠的描述,正确的是() A. 回肠上接十二指肠上曲 B. 回肠肠壁内有孤立淋巴滤泡 C. 近3/5为空肠,远2/5为回肠 D. 在回肠末端1m范围内,有Meckel憩室 E. 空肠下续盲肠 参考答案:D 答案解析:空肠上端起于十二指肠空肠曲,回肠下端接续盲肠。近2/5为空肠,远3/5为回肠。空肠内含孤立淋巴滤泡,回肠内含集合淋巴滤泡。
第22题: [单项选择]Questions 13 to 15 are based on the conversation you have just heard. A. He has a meeting. B. He’s going out of town. C. He’ll be getting his car fixed. D. He has to do some work then. 参考答案:A 答案解析:[解析] Q: Why can’t the man come at the time the woman first suggests