The phrase "crop rotation" (Para. 3) probably means_____.
A、growing high-yielding crops
B、seasonal growing of crops
C、planting soil-enriching crops
D、regular changing of crops
Task 221.Milk is rich in_____.22.Milk and honey help_____.23.Honey helps the absorption_____.24.Your body may bend or move easily if you_____.25.Drinking honey milk regularly can prevent_____.A.proteins and calcium B.fat and sugar C.cough and cold D.your body look and feel young E.drink milk and honey F.of calcium