--- Why do you suggest we buy a new machine?

--- Because the old one has been damaged ___________．

A．beyond reach

B．beyond repair

C．beyond control

D．beyond description

为规范医学影像及相关信息的交换，美国放射学会和美国国家电器制造商协会联合推出了

A．DICOM(医学数字影像)标准
B．AAPM(医学数字图像通信)标准
C．GSDF(灰阶标准显示函数)标准
D．DICOM(医学数字成像与传输)标准
E．FPDM(医学数字图像通信)标准