下面是GMAT逻辑题目:

　　Nature constantly adjusts the atmospheric carbon level. Anincrease in the level causes the atmosphere to hold more heat, which causesmore water to evaporate from the oceans, which causes increased rain. Rainwashes some carbon from the air into the oceans, where it eventually becomespart of the seabed. A decrease in atmosphere carbon causes decreasedevaporation from the oceans, which cause less rain, and thus less carbon iswashed into the oceans. Yet some environmentalists worry that burning fossilfuels may raise atmospheric carbon to a dangerous level. It is true that a sustainedincrease would threaten human life. But the environmentalists shouldrelax---nature will continually adjust the carbon level.

　　Each of the following can be inferred from theinformation in the passage EXCEPT:

　　A. A decrease in thelevel of atmospheric heat causes a decrease in the amount of carbon that rainwashes into the oceans from the air.

　　B. An increase inthe level of carbon in the atmosphere causes increased evaporation of oceanwater.

　　C. An increase inthe level of atmospheric heat causes increased rainfall.

　　D. A decrease in thelevel of carbon in the atmosphere causes decreased evaporation of ocean water.

　　E. A decrease in thelevel of atmospheric heat causes a decrease in the level of carbon in theatmosphere.

　　参考答案:E

　　思路：

　　In my view, the reasoning in this argument is that:

　　On the one hand:

　　An increase in the level of carbon more heat more water to evaporate from the oceans increased rain washes more carbon from the air into the oceans becomes part of the seabed

　　On the other hand:

　　A decrease in atmosphere carbon less heat decreased evaporation from the oceans less rain washes less carbon from the air into the oceans

　　Hence, it is obvious that the correct answer is E.

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