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Migrant Workers
Each year, attra......
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单项选择题
Climate warming will probably NOT be ______.
A.an advantage to Alaska
B.a disaster for Alaska
C.a help to Alaska
D.a blessing to Alaska
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单项选择题
Which of the following environmental problems is the article talking about
A.Acid rain.
B.Ozone depletion.
C.Deforestation.
D.The greenhouse effect.
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