填空题
- A. No evidence to indicate bad effects of naturally contaminated soil
- B. Potential hazards of human contaminated soils
- C. Research on channels of heavy metals getting into human food chain
- D. Geology and health problems
- E. Rocks - the ultimate source of soil pollution
- F. Long - term health effects on children
填空题
Paragraph 1 1.
填空题
Paragraph 3 1.
填空题
Paragraph 4 1.
填空题
Paragraph 6 1.