Among gastric juice, bile, pancreatic juice and small intestinal juice, which is the strongest digestive juice and why？(4 Points)

【参考答案】

最强的消化液是胰液，因为消化三大营养物质（糖、蛋白和脂肪）的酶均有(2`)，且酶类多、活性强，消化能力高。(2`)