NAVLE（北美执业兽医考题）Day 446

单选题，正确答案是100分，非正确答案为0分，Good Luck！

Which factor would contribute to making an x-ray film come out too gray?

哪个因素会导致X光片太灰？

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 - Static electricity 静电

B - Vibration in the Potter-Bucky diaphragm 膜片的震动

C - Excess scatter radiation 射线的多余散射

D - Uneven temperature in developing tanks 显影槽温度不均

E - Prolonged exposure time 曝光时间过长

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