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题目内容
（英语（专升本））
41.Now human beings are faced with ______.
A)a shortage of oil, water, forests, etc.
B)a shortage of labour power
C)a colder climate
D)a decreasing greenhouse effect
A)a shortage of oil, water, forests, etc.
B)a shortage of labour power
C)a colder climate
D)a decreasing greenhouse effect
参考答案