首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
It is a question that has vexed philosophers since the Greeks. But it seems we may now have the answer to the beguilingly simple
It is a question that has vexed philosophers since the Greeks. But it seems we may now have the answer to the beguilingly simple
admin
2016-09-24
32
问题
It is a question that has vexed philosophers since the Greeks. But it seems we may now have the answer to the beguilingly simple question:"Which came first?" It’s the egg.
This reassuring conclusion was the work of an expert panel【C1】______ a philosopher, geneticist and chicken farmer.
"Whether chicken eggs【C2】______ chickens hinges on the nature of chicken eggs, " said panel member and philosopher of science David Papineau at King’s College London.
"I would【C3】______ it’s a chicken egg if it has a chicken in it. If a kangaroo laid an egg【C4】______ which an ostrich hatched, that would surely be an ostrich egg, not a kangaroo egg. By this reasoning, the first chicken did indeed come from a chicken egg,【C5】______ that egg didn’t come from chickens. "
The oldest recorded【C6】______ to the childish conundrum goes【C7】______ to a collection of essays and discussions by the Greek historian Mestrius Plutarchus, born in 46 AD. In a section【C8】______ "Whether the Hen or the Egg Came First", he suggested that the question was already well【C9】______ :"The problem about the egg and the hen, which of them came first, was dragged into our talk, a difficult problem which gives investigators much trouble. "
Plutarchus also【C10】______ at the puzzle’s greater significance:"Sulla my comrade said that with a small problem, as with a tool, we were rocking loose a great and heavy one, that of the【C11】______ of the world. "
Whether the panel【C12】______ that debate is not clear, but they were【C13】______ on the correct chicken/egg pecking order. John Brookfield, an evolutionary geneticist at the University of Nottingham said the【C14】______ involves piecing together the speciation event in which chickens first【C15】______
He imagines two non-chicken parents getting together and giving【C16】______ to the first individual of a new【C17】______ because of a genetic mutation. "The first chicken must have differed from its【C18】______ by some genetic change, perhaps a very【C19】______ one, but one which caused this bird to be the first ever to【C20】______ our criteria for truly being a chicken, " said Professor Brookfield.
"Thus the living organism inside the eggshell would have had the same DNA as the chicken that it would develop into, and thus would itself be a member of the species of chicken, " he added.
【C7】
选项
A、away
B、back
C、forth
D、astray
答案
B
解析
(back向后)。go back to意为“追溯到”。
转载请注明原文地址:https://kaotiyun.com/show/lPGO777K
0
考博英语
相关试题推荐
Byfarthemostcommondifficultyinstudyissimplefailuretogetdowntoregularconcentratedwork.Thisdifficultyismuchg
Byfarthemostcommondifficultyinstudyissimplefailuretogetdowntoregularconcentratedwork.Thisdifficultyismuchg
Byfarthemostcommondifficultyinstudyissimplefailuretogetdowntoregularconcentratedwork.Thisdifficultyismuchg
Alineinasongasks,"doesanyonereallyknowwhattimeitis?"Thisquestioncouldeasilyapplytocalendars!Didyouknowth
Alineinasongasks,"doesanyonereallyknowwhattimeitis?"Thisquestioncouldeasilyapplytocalendars!Didyouknowth
ThereisonelastquestionImustdealwithinthischapter.Whyshouldhumanbeingsbemoral?Anotherwayofputtingtheproble
ThepollutionquestionaswellasseveralotherissuesisgoingtobediscussedwhentheCongressisin______againnextspring.
随机试题
_______由域名空间、域名服务器和地址转换请求程序三部分组成。
男,32岁,右腰部外伤伴血尿3小时,经保守治疗后血尿消失,但血压持续下降达80/45mmHg,血红蛋白及血细胞比容继续降低,右腰部出现肿块,下一步最重要的治疗措施是
战国时期,各国纷纷制定新法,韩国制定了:()。
我国的行政法制监督体系中,下列属于司法机关监督的是()
基准收益率是企业或行业投资者以动态观点确定的、可接受的投资项目______的收益水平。()
为旅游者提供导游服务时,导游人员的头等重要责任是()。
下图是世界地震带分布示意图,读图完成下面问题。图中世界地震带的名称分别是I__________,Ⅱ__________,Ⅲ__________,Ⅳ__________。
汉代著名文献《对贤良策》的作者是谁?()
有没有专门的统一的制式服装是近代警察与古代警察区别之一。()
商品最本质的因素是使用价值。()
最新回复
(
0
)