What can we infer from the passage?A.We can't detect radioactivity even with modern equipm
What can we infer from the passage?
A.We can't detect radioactivity even with modern equipment.
B.Only radiation at very high levels can kill an animal or human being.
C.If a few cells are only damaged, healthy cells will take the place of dead ones.
D.Radiation is harmful no matter what level it is.