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
Modern scientists divide the process of dying into two phases—clinical or temporary death and biological death. Clinical death o
Modern scientists divide the process of dying into two phases—clinical or temporary death and biological death. Clinical death o
admin
2015-12-31
47
问题
Modern scientists divide the process of dying into two phases—clinical or temporary death and biological death. Clinical death occurs when the vital organs, such as the heart or lungs, have ceased to function, but have not suffered permanent damage. The organism can still be revived. Biological death occurs when changes in the organism lead to the disintegration of vital cells and tissues. Death is then irreversible and final.
Scientists have been seeking a way to prolong the period of clinical death so that the organism can be reanimated before biological death occurs. The best method developed so far involves cooling of the organism, combined with narcotic (麻醉的,催眠的) sleep. By slowing down the body’s metabolism, cooling delays the processes leading to biological death.
To illustrate how this works, scientists performed and experimented on a six-year-old female baboon (狒狒) called Keta. The scientists put Keta to sleep with a narcotic. Then they surrounded her body with ice bags and began checking her body temperature. When it had dropped to 28 degrees the scientists began draining blood from an artery. The monkey’s blood pressure decreased and an hour later both the heart and respiration stopped; clinical death set in. For twenty minutes Keta remained in this state. Her temperature dropped to 22 degrees. At this point the scientists pumped blood into an artery in the direction of the heart and started artificial respiration. After two minutes the baboon’s heart became active once more. After fifteen minutes, spontaneous respiration began, and after four hours Keta opened her eyes and lifted her head.After six hours, when the scientists tried to give her a penicillin injection, Keta seized the syringe (注射器) and ran with it around the room. Her behavior differed little from that of a healthy animal.
One possible benefit of the experiment discussed in the passage is______.
选项
A、less crowded cities
B、victory over death
C、protection against fatal injury
D、fewer deaths from heart attacks
答案
D
解析
这是一道推断题。此题不能只局限在理解文章表层含义,应把握住文章的中心思想和每段内容,明确作者的观点与写作该文的目的,然后结合自己的经验与知识进行较深入的逻辑推断,挖出作者的弦外之音,从而得出正确的结论。此篇文章对两种死亡进行了区分和分析,并在最后一段中介绍了对狒狒“Keta”进行的心脏实验。这次实验的成功表明了通过冷冻机体的关键组织(如心脏等)来延缓临床死亡是可能的,这也就意味着今后死于心脏病的人数会越来越少。故D正确。
转载请注明原文地址:https://kaotiyun.com/show/c9PO777K
0
在职攻硕英语联考
相关试题推荐
Youaretowriteinnolessthan120wordsaboutthetitle"HighTimetoCleanUptheSmallAdsAroundOurCity".Youshouldbas
I’dliketo______yourattentiontoanaspectoftheproblemwhichyouappeartohaveoverlooked.
Man:Thoughwedidn’twinthegame,weweresatisfiedwithourperformance.Woman:Youdidagreatjob,youalmostbeattheworl
Ofalltheareasoflearning,themostimportantisthedevelopmentofattitudes.Emotionalreactionsaswellaslogicalthought
ManydoubtiftheInternet,television,advancedcommunicationsorinstantfoodwillmakeourcountryasocietyanytimesoon.
Manypeoplefeelthathumanbeingsareresponsibleforthedisappearanceofsomeotheranimalspecies.Whilewemayhavehastene
Havingspenttwodaysononesubjectand______twodaysontheothersubject,Iamnowreadyfortheexam.
Thoughsomepeoplehavesuggestedthatwomenshouldreturntohouseworkinordertoleavemorejobsformen,theideahasbeenr
ThetemperatureoftheSunisover5000degreesFahrenheitatthesurface,butitrisestoperhapsmorethan16milliondegrees
随机试题
行政行为一经作出,非有法定事由和经法定程序不得随意撤销、废止或改变。这体现了行政法的()
将Excel工作表的A1单元格中的公式“=F5+$G$9”复制到C2单元格中,则C2单元格中的公式是()。
慢性粒细胞白血病最有特异性的体征是
二尖瓣狭窄患者心脏听诊不可能出现的是
最容易合并休克的骨折是()
患者,男,36岁。与人争执被击伤右胸3天,胸痛,深呼吸加重,无明显发绀,x线胸片示:右侧第3、4肋骨骨折,无移位,肺压缩不足30%,治疗方案是
聚氯乙烯塑料衬里的施工方法一般有松套衬里、螺栓固定衬里和()。
隧道管片中不包含()管片。
股份有限公司股利支付的程序包括()。
Iwanttomakeuseofthisshortgatheringtomakeclearourworkingrequirement.Thisisabigcompany,andallclerksshouldk
最新回复
(
0
)