与平片相比,下列哪一项不是CT的优势()。
A.密度分辨率高
B.空间分辨率高
C.解剖分辨率高
D.增强扫描有利于病变定性
E.可进行多方位重建
参考答案:B
Grandma ______ us stories when we were very young. [ ]
A. used to tell
B. was used to tell
C. is used to tell
D. was used to telling
简述《学记》的教育管理思想?