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标题: og12 CR13题目意思 [打印本页]

作者: zhouting321 时间: 2013-8-23 16:41
标题: og12 CR13题目意思

In Swartkans territory, archaeologists discovered charred bone fragments dating back one million years. Analysis of the fragments, which came from a variety of animals, showed that they had been heated to temperatures no higher than those produced in experimental campfires made from branches of white stinkwood, the most common tree around Swartkans

(A) The white stinkwood tree is used for building material by the present-day inhabitants of Swartkans.

(B) Forest fires can heat wood to a range of temperatures[/url] that occur in campfires.

(D) Apart from the Swartkans discovery, there is reliable evidence that early hominids used fire as many as 500,000 years ago.

(E) The bone fragments were found in several distinct layers of limestone that contained primitive cutting tools known to have been used by early hominids.

答案会选，但是题干不知道什么意思。。。温度不会高于营火就说明是人类用的火，是这个意思吗

另外，请教下牛牛们，我做逻辑总是很难把一些理论放进去，多数凭感觉，错误率也不是很高，诸如割断因果这些啊我都没弄很清楚，拿到题目基本就反应出逻辑链（什么推什么），直接做了，仍然有不少做错的题目，这是因为我没把那些逻辑术语搞清楚吗

作者: zhouting321 时间: 2013-8-23 17:10
找到答案了
版主点评: 原文说在那一个地区发现了骨头的碎片,而这个骨头被烤的温度又不能排除是自然火灾所致.
（骨头被加热的温度不高于camp fire （排除天火的可能，只能是人为））

有没有大牛回答我下面那个问题呢！！！！！！！！！

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