请教一道OG 12th的逻辑题13

you1597

In Swartkans territory, archaeologists discovered charred bone fragments dating back on 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 braches of white stinkwood, the most common tree around Swartkans.

Which of the following, if true, would, together with the information above, provide the best basisi 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 si reliable evidence that early hominids used fire as many as 500000 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



如题 CR刚入门 问一个特别鄙视的问题。。为啥这道题是加强句子？ 问题里没有加强的单词呀！！搞不懂。。只记得加强的单词有 strenghen support canbedraw 等等啊 但是这道题没有 怎么判断。。谢了~