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In order to build a safe chicken farm, the total amount of pathogenic microorganisms should be con MORE

Identification [Microscopic identification] 1. Perrin (1) Leaf surface view The peritudinal wa MORE

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Frequent haze weather has recently occurred. This type of weather has a greater impact on greenhou MORE

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Zinc is one of the trace elements necessary for the growth and development of vegetables, and many MORE

In 1906, the Xiangya Hospital of Central South University was established by America MORE

Chinese medicine believes that grapefruit is sweet and sour, cold, non-toxic, has spleen, cough, h MORE

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Plasmodium can invade human red blood cells and interfere with the normal function o MORE