问题
单项选择题
CT扫描与常规体层摄影相比,根本区别是()
A.空间分辨力的高低
B.图像显示范围大小
C.病人受线量的多少
D.无层面外组织重叠
E.可获得冠状面、矢状面像
答案
参考答案:D
解析:常规体层摄影会产生层面外组织的重叠,而CT解决了这一点。
CT扫描与常规体层摄影相比,根本区别是()
A.空间分辨力的高低
B.图像显示范围大小
C.病人受线量的多少
D.无层面外组织重叠
E.可获得冠状面、矢状面像
参考答案:D
解析:常规体层摄影会产生层面外组织的重叠,而CT解决了这一点。
根据句意,从方框内选择合适的单词填空。 | |
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1. We have _____ watched such an exciting football match before. 2. Lily's grandmother has been dead _____ a few years. 3. My sister is going to Canada _____ a few days. 4. _____ you have got everything ready, please let me know. 5. —How long have you been like this? —_____ last night. |