求以3句话的主谓宾是什么,还有是什么从句.从句修饰的是什么.
求以3句话的主谓宾是什么,还有是什么从句.从句修饰的是什么.
The gastrointestinal system is the portal through which nutritive substances,vitamins,minerals and fluids enter the body.(肠胃系统是营养物质,维生素,矿物质和液体进入身体的门户)Proteins,fats,and complex carbohydrates are broken down into absorbable units(digested),principally in the small intestine.(蛋白质,脂肪,碳水化合物主要是在小肠分解成可吸收的单位)The products of digestion and the vitamins,minerals,and water cross the mucosa and enter the lymph or the blood(absorption).(消化了的食物,维生素,矿物质和水是通过粘膜进入淋巴液和血液的)