20、X线摄影时,要想提高不同组织的对比度,常采用 () () is often used to improve the contrast of different tissues in X-ray photography

A.高能X射线 High energy X-ray B.低能X射线 Low energy X-ray C.长时间曝光 Long Time Exposure D.高管电压 Large tube voltage

时间:2024-05-01 04:22:50

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