A:胆固醇、脂肪酸、脂肪酶
B:淀粉、半乳糖、糖原
C:氨基酸、核苷酸、麦芽糖
D:性激素、脱氧核糖、胰岛素
Most of my friends, _________ Sandy, Jimmy and Angela,are all kind to me.