渗透膜不能保持营养平衡(制糖)酵母细胞内的副产品(乙醇)之外。
The membrane cannot maintain the osmotic balance of nutrients (sugar) inside the yeast cell and the by-products (alcohol) outside.
性早熟的预防可以采取减少饮食中激素的摄入、保持营养平衡、进行适度的运动等方法；
The precocious puberty can be prevented by reducing the absorption of the hormone in the diet, keeping nutrition balanced, carrying on the appropriate movement, etc.
介绍了人体健康与营养平衡的关系和如何做到营养平衡。指出只有保持营养平衡，才能保证健康长寿。
The relation between nutrition balance and human health was Presented. It concluded if people have health and long life, must maintain the nutrition balance.
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