本题目来源于试卷: IB Psychology HL Biological Approaches to Human Behaviour，类别为 IB心理学
[单选题]
Which of the following does not describe the magnetic resonance imagingrik6kgi7932bp8 n ik f(j5 jml fe)b)4/b+h6acd yol8 jm vxg:v e*n0l(MRI) scane vhf/e ) xjolmvglab):68n4*cbd + 0y?
A. It uses magnetic fields and radio waves to produce 3D computer-generated images.
B. It allows researchers to see structures within the brain.
C. It involves having people remove all metal objects in their possession.
D. It requires patients to be injected with a radioactive glucose tracer which shows the areas where glucose is absorbed in the active brain
参考答案: D
本题详细解析:
A, B and C are functions of the MRI, whereas D is the function of the positron q4g:zd 6+x-i1tfh hyk emission tomography (PET) scans.
MRI scans use magnetic fields and radio waves to produce 3D computer-generated images. All metal objects and clothing on the body have to be removed before lying in the MRI machine. This is a disadvantage of the technique, as peoh:-+iz16hkgtq d4 xfy ple with metallic implants cannot use this technique.
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