题目内容
(请给出正确答案)
[主观题]
According to the passage, which of the following is true about human-generated air polluti
on in localized regions?
A.It can be dwarfed by nature's output of pollutants in the localized region.
B.It can overwhelm the natural system that removes pollutants.
C.It will react harmfully with naturally occurring pollutants.
D.It will damage areas outside of the localized regions.
如搜索结果不匹配,请 联系老师 获取答案