问题
单项选择题
下列CT基本概念中,哪项描述不正确()
A.矩阵与像素成反比
B.窗宽与密度分辨率成反比
C.窗中心与密度分辨率成反比
D.纯水的CT值为0Hu
E.像素与图像清晰度成反比
答案
参考答案:C
下列CT基本概念中,哪项描述不正确()
A.矩阵与像素成反比
B.窗宽与密度分辨率成反比
C.窗中心与密度分辨率成反比
D.纯水的CT值为0Hu
E.像素与图像清晰度成反比
参考答案:C
根据短文内容完成表格。 | ||||||||||||
Hi, I'm Zhu Hua. I'm a junior high school student in Beijing. There are twenty-six boys and twenty-two girls in my class. Half of the students come to school by bike. Five boys and four girls come to school on foot. About a quarter of us come to school by bus. The rest come to school by subway. We're all from China. We're good friends.
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