【简答题】糖的主要功能是提供热能。每克葡萄糖在人体内氧化产生4千卡能量,人体所需要的70%左右的能量由糖提供。可见,人体内最重要的供能物质是糖类,只有糖类所提供的能量无法满足机体的需要时,脂肪和蛋白质才开始供能。本题选C。
【单选题】My young brother runs____than my old brother
【单选题】My brother runs fast. Look, he _______
【单选题】人体内最主要的供能物质和最重要的贮能物质分别是 [ ]
【简答题】根据句意及首字母提示补全单词 1. My brother runs very fast. He wants to be an a__________ when he grows up. 2. Their fathers had to work on building sites to make a l__________. 3. After hard work, the boy finally g...
【简答题】My brother runs________(快地) and he is good at running.
【单选题】My young brother runs____ than my old brother.
【简答题】糖类、脂肪和蛋白质都是组成细胞的主要 。并且能够为生命活动提供 。其中 是人体最主要的功能物质; 是人体内重要的备用能源物质; 是建造和修复身体的重要原料。
【单选题】My brother runs ___ the wind.