Which of the following imaging examinations does not use X-ray? （）
A. computed radiography (CR)
B. digital radiography (DR)
C. plain CT scan
D. enhancement CT scan
E. magnetic resonance imaging (MRI)
查看答案
For different imaging techniques and their clinical application, which of the following statements is correct? ()
A. X-ray imaging is suitable for all parts of human body
B. X-ray contrast examination is suitable for the digestive tract
C. MRI can completely replace CT Examination
D. CT is superior to MRI for displaying soft tissue
E. When both MRI and CT can be used, CT should be the first choice.
解释四句口诀：“三颠倒，找基极；PN结，定管型；顺箭头，偏转大；测不准，动嘴巴。”
经典马克思主义文艺理论只在前苏联和中国有较大影响。
A. 对
B. 错
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