【摘 要】
：
现在人们都知道，维生素是人体生理活动必不可少的营养物质，并已懂得根据身体的需要补充各种维生素。然而在一百年前，人们并不认识维生素，也不了解它对人体的作用，因而造成了许多与
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现在人们都知道，维生素是人体生理活动必不可少的营养物质，并已懂得根据身体的需要补充各种维生素。然而在一百年前，人们并不认识维生素，也不了解它对人体的作用，因而造成了许多与维生素有关的悲剧。直到20世纪初，人们才发现并认识了维生素，但对其特点及功能尚处于探索
Nowadays, people all know that vitamins are essential nutrients in the human body and understand how to supplement vitamins according to the needs of the body. However, a hundred years ago, people did not know vitamins and did not understand its effect on the human body, resulting in many vitamin-related tragedies. It was not until the early 1900s that people discovered and recognized vitamins, but their features and functions are still being explored
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