A - The x-ray was shot with a grid under the dog 拍摄X光片时该犬的身下放了栅格
B - The kilovoltage was too high KV太高
C - The x-ray was shot through a Potter-Bucky diaphragm 拍摄X片时使用了Potter-Bucky隔板
D - This is a sign of static electricity 静电的标志
E - The focal-film distance was too long 焦点胶片之间的距离太远