下列有关营养物质在人体内进行化学性消化部位的叙述,其中正确的是 [ ]
A.淀粉只在口腔内消化
B.蛋白质只在胃内消化
C.脂肪只在小肠中消化
D.麦芽糖只在小肠中消化
CD
The loss of ability in the mother tongue is mainly caused by the use of electronic devices and a lack of attention to culture.
A.widespread
B.visual
C.ridiculous
D.precious
中空玻璃有哪些特点?常用在什么地方?