NAVLE（北美执业兽医考题）Day 416

单选题，正确答案是100分，非正确答案为0分，Good Luck！

Q1:What are the three most important factors to remember for radiation safety?辐射安全需要记住的三个最重要的因素是什么？Find out the answer by clicking on one of the listed choices. Good luck!点击列出的选项找出答案，祝大家好运

A - Positioning, angle of tungsten target, temperature of filament 体位，投照中心角度，灯丝温度

B - kVp setting, focal-film distance, grid type 千伏设置，焦片距离，栅格类型

C - Time, distance, shielding 时间，距离，防护

D - Power, restraint, x-ray tube length 强度，保定，x线管长度

NAVLE（北美执业兽医考题）Day 416

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