标题: 求问一道Helr书中的题目！网上都没有搜到 [打印本页] 作者: 123SherryGo 时间: 2016-10-2 09:59 标题: 求问一道Helr书中的题目！网上都没有搜到 A nothced wooden stick from South Africa's Border Cave dating to 24,000 years ago contains the earliest evidence of humans using poison. Moreover, the poison applicator is just one of several artifacts, some dating to as early as 44,000 years ago, that resemble objects used by the San. Others include a digging stick, ostrich eggshell beads, carved pig tusks, bone arrowheads, and a lump of beeswax. Archaeologists have hypothesized that the finds indicate that San culture emerged about 44,000 years ago, making these the earliest link to a culture of modern humans.
Which of the following, if true, most strongly supports the archaeologists' hypothesis?
(A) Carbon-dating of human skeleton indicates that human were not able to make artifacts until 44,000 years ago.
(B) DNA"clock"by geneticists indicates that San and other cultures diverged 44,000 years ago.
(C) Successor cultures at given cave do not often adopt the style of agricultural implements used by earlier inhabitants of the same site.
(D) Poison is an important part of traditional San hunting methods because their bone-tipped arrows usually do not cause enough damage to kill large prey on their own.
(E) Except for notched wooden sticks, some of the artifacts dating to 44,000 year ago can also be used as prey tools.