限定放大摄影放大倍数的主要因素是()
A.X线管容量
B.病灶的大小
C.被照体厚度
D.X线管焦点尺寸
E.焦点至胶片距离
参考答案:E
解析:焦-片距与肢-片距,是影响影像放大的两大主要因素。
限定放大摄影放大倍数的主要因素是()
A.X线管容量
B.病灶的大小
C.被照体厚度
D.X线管焦点尺寸
E.焦点至胶片距离
参考答案:E
解析:焦-片距与肢-片距,是影响影像放大的两大主要因素。
任务型阅读。五位中国学生要去美国留学,他们想要找住家。请仔细阅读第1-5题中的学生的个人情 况说明,并从A至F六个选项中,帮助他们选择最适合的住家(其中一项为多余选项) | ||||||
( )1. Zhang Chao likes Chinese food. He hopes his host family speak a little Chinese. ( )2. Li Wei likes doing sports. He wants to live near a park. ( )3. Liu Yong hopes to live near his school-Reading School. He prefers a bed room with a bathroom. ( )4. Chen Yao wants to live in a big bedroom cheaperthan £350 a month. She can't stand pets. ( )5. Hu Mei loves pets. She would like a bedroom cheaper than £220 a month. | ||||||
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