不属于摄片体位内容的是()
A.摄片距离
B.肢体体位
C.胶片位置
D.中心线入射方向
E.滤线器
参考答案:A, E
Ernest visited the South Pole because he wanted to see one of the _______regions in the world.
A.colder
B.coldest
C.more coldly
D.most coldly
火灾