15. In Swartkans territory, archaeologists discovered charred bone fragments dating back 1 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.
Which of the following, if true, would, together with the information above, provide the best basis for the claim that the charred bone fragments are evidence of the use of fire by early hominids?
(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 that occur in campfires.
(C) The bone fragments were fitted together by the archaeologists to form the complete skeletons of several animals.
(D) Apart from the Swartkans discovery, there is reliable evidence that early hominids used fire as many as 500 thousand years ago.（E）
(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.
在S地区，考古学家们发现了100万年前的烧焦的骨头碎片，对这些来自于各种动物的碎片分析指出这些碎片被加热的温度与营火的温度是一样的，营火是用在S地很普遍的S树的树枝点燃的。
D. 只是单纯指出早期人类使用火的事实，并没有针对上文内容做出回应，应属无关选项。
E. 在石灰石中发现的骨头碎片中含有早期人类使用的原始切割工具。
说明这些骨头碎片与早期人类有关联。
呵呵，一下子贴很多，不好意思哦~~~辛苦你们了~~~多谢了~~~~
昨天整理了一下XDF补充教材上的题目，把不清楚的一股脑全贴上来了，一下子解决嘛～～～
还有好像大全里的题目并没有包含所有ＸＤＦ补充教材上的题目
呵呵，一下子贴很多，不好意思哦~~~辛苦你们了~~~多谢了~~~~
昨天整理了一下XDF补充教材上的题目，把不清楚的一股脑全贴上来了，一下子解决嘛～～～
还有好像大全里的题目并没有包含所有ＸＤＦ补充教材上的题目
不一定要以XDF补充教材为纲，那里面的题目比较杂；风格迥异。
| 欢迎光临 ChaseDream (https://forum.chasedream.com/) | Powered by Discuz! X3.3 |