What kind of prandial structure has profit most to the body? 怎样的膳食结构对身体最有好处？
Pork is an important part of human prand, so the structure of the human meal is greatly influenced by the improvement of the output and quality of pork. 猪肉是人类膳食的重要组成部分，提高猪肉的产量和质量，对改善人们膳食结构的影响重大。
