1) Yellow color of iodine solution changes to bluish-black in the presence of................. a) Starch b) Protein c) Fat d) Vitamins 2) The daily intake of food which contains all the nutrients the body needs in the right quantities is called a ………… a) Balanced diet b) Unbalanced diet

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?