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
2012-07-17
77
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 characteristic of clinical death is______.
选项
A、lasting damage to the lungs
B、destruction of the tissues
C、temporary non-functioning of the heart
D、that the organism cannot be reanimated
答案
C
解析
这是一道细节题。文中第一段第二句说:“当关键的机体组织,如心脏或肺,已经停止了功能,但还未遭到永久损害时,临床死亡就发生了。”C符合文中内容,即心脏暂时不起作用了。A“肺部的持续损害”与文中内容正好相反,应排除。B“生物组织的破坏”和D“生物体不能复活”,与文中内容不符,也应排除。
转载请注明原文地址:https://kaotiyun.com/show/hEXO777K
0
在职攻硕英语联考
相关试题推荐
WemetMaryandherhusbandatapartytwomonthsago.______we’vehadnofurthercommunication.
NicholasChauvin,aFrenchsoldier,airedhisvenerationofNapoleonBonaparteso______andunceasinglythathebecamethelaughi
IntheUnitedStatesandinmanyothercountriesaroundtheworld,therearefourmainwaysforpeopletobe【C1】______aboutdeve
TheJapanesedesireformarriagehadbeenverystrong.Inthefifth""worldyouthattitudesurvey""【C1】______bytheManagementa
Ifitwereonlynecessarytodecidewhethertoteachelementarysciencetoeveryoneonamassbasisortofindthegiftedfewan
Ifitwereonlynecessarytodecidewhethertoteachelementarysciencetoeveryoneonamassbasisortofindthegiftedfewan
InthepostColdWarworldfewarticleshaveinfluencedhowWesternpolicymakersviewtheworldmorethanSamuelHuntington’s19
IwasluckybecauseIhadturnedmybackon______,pursuinginsteadcommon-sensereality.
Inhernewnovel,"Annabel,"reviewedthisweekinthemagazine,KathleenWinter______thenature-nurturedivide.
Theseexamplesshowthatopennessandtheabilitytochangebringscouplesagiantstepclosertothemaritalharmonythey______
随机试题
_______实际上是操作系统的一种存储管理方式,起到了扩充主存空间的作用。
某隧道采用全断面法开挖,在初期支护后对拱顶下沉进行量测,基点测桩布置在已施作仰拱且稳定的路基上,测量通视条件好,无须转站。采用精密水准仪进行拱顶下沉测量,测量时基点塔尺采用正立(塔尺刻度值从下往上增大),测点处的塔尺采用倒立(塔尺刻度值从下往上减小)。下表
商业银行特殊的企业性质决定了商业银行的基本职能,一般包括()。
关于高压熔断器串真空接触器的选择原则说法,正确的是:
收取销售服务费的,基金管理人要对持续持有期少于30日的投资人收取不低于()的赎回费。
作为国际支付手段的外汇应具备()。Ⅰ.可支付性Ⅱ.可收益性Ⅲ.可获得性Ⅳ.可兑换性
甲家的承包地被乙家的承包地所包围,在承包时,有一条小路通往甲家的承包地,甲为了拓宽道路,与乙签订了一份协议,拓宽道路一米,甲一次性支付乙5000元。甲通过该合同所取得的权利为何种权利?()
毛泽东明确提出“马克思列宁主义的理论和中国革命的实践相结合”这一完整概念是在他所著的
[*]
泼水节是傣族人最重要的节日,一般是在傣历六月或七月的某一天举行(大约是汉族清明节后的十天左右)。泼水节标志着傣族新年的开始。他们相互泼水,通过泼水传递问候。泼水节当晚,每一个村寨都会组织聚会,唱歌、跳舞。在竹笛、芦笙(一种风管乐器)、铓锣和象脚鼓(一种置于
最新回复
(
0
)