[视听材料] 1997年英语专业八级考试全真试卷答案 专业八级

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1997年英语专业八级考试全真试卷答案
Good morning, everyone. Today we’re going to talk about acid rain. You may wonder what is acid rain. Well, it is almost impossible to describe the mathematical relationship between what goes up as pollutant emissions and what comes down as acid rain.

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