下述指标中,CT低于平片摄影的是()。
A.空间分辨率
B.密度分辨率
C.最大密度
D.最小密度
E.平均密度
参考答案:A
It is likely that these animals could be frightened, a sudden loud noise.
A.being there
B.should there be
C.there was
D.there having been
警察的职能是否集中于一个统一的警察机关是近代警察与古代警察的区别之一。( )