2. 自考
  3. A. industrially polluted soils B. once they entered the food chain. C. naturally polluted soils D. the geology and geochemistry

A. industrially polluted soils B. once they entered the food chain. C. naturally polluted soils D. the geology and geochemistry

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问题 A. industrially polluted soils
B. once they entered the food chain.
C. naturally polluted soils
D. the geology and geochemistry of the environments
E. the element of iodine
F. not found so far
The data that people living on metal-rich soils experience a potential health hazard______.
选项
答案F
解析 本句应定位在第三段中“So far there is no data to suggest that people living on metal—rich soils experience a potential health hazard．The levels of metals within naturally contaminatedsoils are generally not high enough to cause serious health problems．”从这两句话中我们可以发现，目前大家所担心的潜在健康威胁尚未出现，相关的证据还未找到。
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