请教last 5/s2/Q11

mzyzhu · 发表于 2003-6-6 04:13:00

Q11. Nature constantly adjusts the atmospheric carbon level. An increase in the level causes the atmosphere to hold more heat, which causes more water to evaporate from the oceans, which causes increased rain. Rain washes some carbon from the air into the oceans, where it eventually becomes part of the seabed. A decrease in atmospheric carbon causes the atmosphere to hold less heat, which causes decreased evaporation from the oceans, which causes less rain, and thus less carbon is washed into the oceans. Yet some environmentalists worry that burning fossil fuels may raise atmospheric carbon to a dangerous level. It is true that a sustained increase would threaten human life. But the environmentalists should relax – nature will continually adjust the carbon level.

11. Which one of the following, if true, would most weaken the argument in the passage?
(E) The natural adjustment process, which occurs over millions of years, allows wide fluctuations in the carbon level in the short term.

The answer is E. E是否在直接反对原文的nature will CONTINUALLY adjust the carbon level.

mzyzhu · 发表于 2003-6-7 02:59:00

mzyzhu · 发表于 2003-6-9 03:02:00

请教last 5/s2/Q11

请教last 5/s2/Q11

所属分类: GMAT考试

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