防护 An x-ray is a photo taken with a machine which passes magnetic radiation through the body, an image of the internal structures 八D
防护
防护
防护
Lets go find some anatomy 2
b 古人用火在龟甲上烧出裂 纹,用以预测吉凶,叫做“卜”。《周 礼》:“问龟曰卜”。引中为“猜测 “估计”,现在还常说“前途未卜” 吉凶难卜
洛书 九宫图,幻方 洛書 七
洛书 九宫图，幻方