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  • 经典英文 晒太阳的作用

    1,supplementary nutrients Vitamin D was mainly rely on two channels, one is to obtain from food, and the other one is on the adoption of solar ultraviolet radiation in human skin synthesis of vitamin D3, it can even in the small intestine to pr...

  • VOA慢速英语2010年-Health Report - Eating White Rice Incr

    This is the VOA Special English Health Report. Rice is an important part of many peoples diets. Researchers from the Harvard School of Public Health in Massachusetts have released a report about rice. It shows that eating white rice increases the ris...

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