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外语
Pollution in water is noticed______. The living things die because there is no ______ in the river or sea.
Pollution in water is noticed______. The living things die because there is no ______ in the river or sea.
admin
2009-07-15
43
问题
Pollution in water is noticed______.
The living things die because there is no ______ in the river or sea.
选项
A、oxygen
B、poison
C、water
D、fish
答案
A
解析
根据第三段倒数第二句:如果不对污水进行适当的处理,就会弄脏水源从而使水中的各种生命得不到它们所赖以生存的氧。
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公共英语二级笔试题库公共英语(PETS)分类
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公共英语二级笔试
公共英语(PETS)
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