我们每天都要吃到烹调好的蔬菜。蔬菜有叶菜类、茎菜类、根菜类等类别。当你吃到叶菜的边叶与芯叶(图1)时,会有不同的感觉。这是因为边叶与芯叶的成分含量不同的缘故,而其中水分含量也可能有所不同。现在你做下面实验来看看是不是这样的。实验器材蔬菜的边叶与芯叶(如大白菜、 We eat cooked vegetables every day. Vegetables include leafy vegetables, stem vegetables, and root vegetables. When you eat the leaves and core leaves of leafy vegetables (Figure 1), there will be different feelings. This is because of the difference in the content of the components of the leaves and the core leaves, and the moisture content may also be different. Now you do the following experiment to see if this is the case. Experimental equipment vegetable side leaves and core leaves (such as cabbage,