霍奇金病中，大纵隔的定义是指（）
A.有纵隔淋巴结肿大的病例
B.X线胸片上纵隔增宽的病例
C.纵隔肿块最大径与T5~6胸廓横径之比＞1/3
D.纵隔肿块最大径与胸廓最大横径之比＞1/3
E.纵隔肿块最大径与T5~6胸廓横径之比＞1/2
参考答案：D
解析：
霍奇金病中，大纵隔的定义是指纵隔肿块最大径与胸廓最大横径之比＞1/3。
| 阅读理解 | ||||||||||||||
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| 根据Fred 一周的活动安排，选择最佳答案。 | ||||||||||||||
| 1. Where does Fred meet Ann? | ||||||||||||||
| A. At Brown 's house. B. In the hospital. C. At the station. D. At Kay's house. | ||||||||||||||
| 2. For how many hours a week does Fred do his part time job? | ||||||||||||||
| A. Five hours. B. Six hours. C. Ten hours. D. Eleven hours. | ||||||||||||||
| 3. is ill in hospital. | ||||||||||||||
| A. Brown B. Joy C. Tom D. Kay | ||||||||||||||
| 4. Kay's birthday is on . | ||||||||||||||
| A. Tuesday B. Friday C. Sunday D. Thursday | ||||||||||||||
| 5. What does Fred do on Saturday afternoon? | ||||||||||||||
| A. Play football. B. Study with Tom. C. Have a dancing class. D. Do part time job. |