单项选择题

A.高场MRI的磁场强度范围≥2.0T
B.高场MRI的磁场强度范围≥1.5T
C.低场MRI的磁场强度0.1~0.38T
D.中场MRI的磁场强度0.3~1.0T
E.极低场磁场强度范围≤0.04T