我觉得tpo21阅读有答案都不对啊!

我觉得tpo21阅读有答案都不对啊!
第二个section第一篇的14题 summary
A.One obstacfe to the transition from a nomadic lifestyle to the sedentary lifestyle required by agriculture was that hunter-gatherers had not developed storage techniques.
B.It seems unlikely that agriculture emerged in response to a food shortage brought on by a worldwide population crisis that developed once the whole world was occupied.
C.The origins of agriculture maybe linked to climate change at the end of the last ice age,but this does not explain why earlier climatic instability had not led to agriculture.
D.The only available means of understanding the social organization and technical abilities of ancient hunter-gatherer societies is the study of contemporary hunter-gatherers.
E.One recent theory suggests that the invention of agriculture was made possible by the integration of various mental capacities in the human mind.
F.Little is known about why only some societies that adopted agriculture rapidly progressed to using metal tools,becoming literate,and developing a state.
答案是BCD 我觉得应该是BCE
d在哪里踢到了啊?就算提到了 任何一个段落的内容都概括不了 E正好相反 概括的是第五段关于农业起源的第三个理论
5.It is archaeologist Steven Mithen's thesis,brilliantly developed in his book The Prehistory of the Mind (1996),that approximately 40,000 years ago the human mind developed cognitive fluidity,that is,the integration of the specializations of the mind:technical,natural history (geared to understanding the behavior and distribution of natural resources),social intelligence,and the linguistic capacity.Cognitive fluidity explains the appearance of art,religion,and sophisticated speech.Once humans possessed such a mind,they were able to find an imaginative solution to a situation of severe economic crisis such as the farming dilemma described earlier.Mithen proposes the existence of four mental elements to account for the emergence of farming:(1) the ability to develop tools that could be used intensively to harvest and process plant resources; (2) the tendency to use plants and animals as the medium to acquire social prestige and power; (3) the tendency to develop "social relationships" with animals structurally similar to those developed with people—specifically,the ability to think of animals as people (anthropomorphism) and of people as animals (totemism); and (4) the tendency to manipulate plants and animals.
第二个section的第20题 词汇题
20.The word "elaboration" in the passage is closest in meaning to
A.development
B.specialization
C.use
D.transformation
我觉得选B
原文里的话是这样的：
[color=Red]The development[/color] of an understanding of the self becomes evident between the first and second years of life and shows rapid elaboration in subsequent years.
and前后两个句子的主语都是the development,如果选development的话,第二句带进去不就成了 ...and （development）shows rapid development in subsequent years.这不是一看就不对么!

既然问题已经过期了,那就采纳一个答案吧.