【简答题】A.industrially polluted soils B.rock and soil chemistry C.naturally polluted soils D.the pathways of matals into the food chain E.the element of iodine F.the persistence of heavy metals 第 27 题 Some di...
【简答题】A.How to find the way to exam polluted sea fish. B.Sea fish will be polluted when you eat it next time. C.More and more sea fish will be polluted soon. D.Sea fish will be free from oil pollution.