【名词&注释】
低通滤波器(low-pass filter)、共振频率(resonance frequency)、前置放大器(preamplifier)、磁场强度(magnetic field intensity)、检波器(geophone)、数模转换器(digital to analog converter)、混频器(mixer)、不相同(disaffinity)、主要组成部分(main components)
[单选题]CT国际通用的英文全称是
A. Computer Aided Tomography
B. Computer TransAxial Tomography
C. Computerized Tomography
D. Computed Tomography
E. Computerized Transverse Tomography