What can we learn from the passage?A.People can hardly get Vitamin D from daily diet.B.Hea
What can we learn from the passage?
A.People can hardly get Vitamin D from daily diet.
B.Heavy use of sunscreen can promote the Vitamin D production by the body.
C.The Vitamin D density is strengthened in milk and bread.
D.The standard amount of Vitamin D intake keeps no change for kids and adolescents.