多层螺旋CT机架旋转一周获取多幅图像是因为（）The reason why the gantry of the multi-slice spiral CT rotates once to obtain multiple images is（）

A.厚扇形束Thick fan-shaped beam

B.在人体长轴方向有多排探测器Multi-slice spiral CT has multiple rows of detectors in the long axis direction of the human body

C.有多个数据采集系统Multi-slice spiral CT has multiple data acquisition systems

D.多层螺旋CT造价高Multi-slice spiral CT is expensive

E.多层螺旋使用螺旋扫描Multi-layer spiral using spiral scanning

正确答案：有多个数据采集系统Multi-slice spiral CT has multiple data acquisition systems