It can be inferred from the passage that______. A.raising the world's temperature only a few degrees would not do much harm to life on earth B.lowering the world's temperature merely a few degrees Would lead many major farming areas to disaster C.almost no temperature variations have occurred over the past decade D.the world's temperature will remain constant in the years to come
A.A.raising B.lowering C.almost D.the
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B 解析：推理题。本题问的是：从文章可推断______。根据文章第2段第2句“A drop of just a ......