问题
单项选择题
目前国内外肿瘤放射治疗设备中，应用最为广泛的外照射治疗设备是（）。
A.深部X线治疗机
B.质子治疗机
C.66钴治疗机
D.直线加速器
E.回旋加速器
答案
参考答案：D
解析：目前，国内外肿瘤放射治疗设备中，应用最广的外照射治疗设备是直线加速器，国内还有单位仍然在使用66钴治疗机，但主流是直线加速器。
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目前国内外肿瘤放射治疗设备中，应用最为广泛的外照射治疗设备是（）。
A.深部X线治疗机
B.质子治疗机
C.66钴治疗机
D.直线加速器
E.回旋加速器
参考答案：D
解析：目前，国内外肿瘤放射治疗设备中，应用最广的外照射治疗设备是直线加速器，国内还有单位仍然在使用66钴治疗机，但主流是直线加速器。
| 阅读理解。 | ||||||||
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| 1. Who can teach children to play the guitar? | ||||||||
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| A. Larry. B. David. C. Mr White. D. Susan. | ||||||||
| 2. Which number should you call at if you find the lost dog? | ||||||||
[ ] | ||||||||
| A. 6087593. B. 7328059. C. 5132633. D. 13935728866. | ||||||||
| 3. Which of the four people may get the job as a taxi driver? | ||||||||
[ ] | ||||||||
| A. A 50-year-old person. B. A 40-year-old person who can drive well in the city. C. A person who has just got his driver's license. D. A person who can drive and has free time on weekends. | ||||||||
| 4. When is hot water provided in the apartment according to the ad? | ||||||||
[ ] | ||||||||
| A. In the daytime. B. At night. C. At any time. D. Only in the afternoon. | ||||||||
| 5. How can you contact the owner of the apartment for more information? | ||||||||
[ ] | ||||||||
| A. By making a phone call. B. By going to visit it. C. By sending an e-mail. D. By sending a letter. |
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