2. 外语
  3. The first paragraph mainly tells us______. According to the passage, we can conclude that in some areas if farmers who grow gra

The first paragraph mainly tells us______. According to the passage, we can conclude that in some areas if farmers who grow gra

admin2008-12-15  99
问题 The first paragraph mainly tells us______.
According to the passage, we can conclude that in some areas if farmers who grow grapes light fires in the early morning, that is because the farmers want to______.
选项 A、drive away warm air
B、prevent cold air from coming to harm their plants
C、cause more wind
D、stop warm air running away
答案B
解析 从文章提到的空气运动推断：有些地方的葡萄农为了给葡萄保温而点火。目的是想让地面上的冷空气经火加温而升高，故选B。
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