複選題8. The molecule 2,3-bisphosphoglycerate (BPG) is present in red blood cells in which it binds noncovalently to hemoglobin. Which functional groups in hemoglobin can make the strongest noncovalent interactions with BPG at a pH value of 7.0? (A) sulfhydryl groups (B) Alcoholic hydroxyl groups (C) Hydrocarbon groups (D) Amino groups (E) Carboxy groups