首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
请阅读Passage 1,完成题: Modern scientists divide the process of dying into two sta...
请阅读Passage 1,完成题: Modern scientists divide the process of dying into two sta...
admin
2020-12-24
34
问题
请阅读Passage 1,完成题:
Modern scientists divide the process of dying into two stages--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 revived before biological death occurs. The best method developed so far involves cooling of the organism, combined with narcotic sleep. By slowing down the body's metabolism, cooling delays the processes leading to biological death.
To illustrate how this works, scientists performed an experiment on a six-year-old female monkey 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 its body. The monkey's blood pressure decreased and an hour later both the heart and breathing 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 its body in the direction of the heart and started artificial breathing. After two minutes the monkey's heart became active once more. After fifteen minutes, spontaneous breathing 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 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__________.
查看材料
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
在该实验中,科学家使母猴麻醉入睡,在它身旁放满冰袋。当它体温达到28度时开始抽血。母猴血压下降,一小时后心跳和呼吸停止。进入临床死亡状态。20分钟后它体温降到22度,科学家向心脏的方向给它输血并进行人工呼吸。过了2分钟,母猴心脏开始跳动;又过了15分钟,呼吸启动;4小时后睁眼抬头;6小时后科学家给它注射青霉素.它就开始活蹦乱跳了。这个实验表明,冷冻法延长l临床死亡的好处之一就是可以减少由心脏病突发而引起的死亡。
转载请注明原文地址:https://ti.zuoweng.com/ti/zBT8KKKQ
相关试题推荐
Passage2 Americanstodaydon′tplaceaveryhighvalueonintellect.Ourhe...
Passage2 Americansdon’tliketolosewars.Ofcourse,alotdependsonhowy...
Passage2 Americansdon’tliketolosewars.Ofcourse,alotdependsonhowy...
Passage2 Americansdon’tliketolosewars.Ofcourse,alotdependsonhowy...
Passage2 Ofallthecomponentsofagoodnight′ssleep,dreamsseemtobe...
Passage2 Ofallthecomponentsofagoodnight′ssleep,dreamsseemtobe...
Passage2 Ofallthecomponentsofagoodnight′ssleep,dreamsseemtobe...
Passage2 ForcenturiesinSpainandLatinAmerica,headinghomeforluncha...
Passage2 ForcenturiesinSpainandLatinAmerica,headinghomeforluncha...
Passage2 ForcenturiesinSpainandLatinAmerica,headinghomeforluncha...
随机试题
简述出版物定位的方法。出版物定位的方法有以下几种:(1)按业绩来进行定位——ABC法则。ABC法则就是在众多出版物组合中,依80/20准则(即80%的业绩来自2
胆固醇结石好发的部位是
由于采购工作的特殊性,组织要高度重视社会偏好激励系统中的()。
套利头寸的了结可以选择()的形式。
男性,58岁。吸烟30年。咳嗽咳痰20余年,活动后气急4年,偶有下肢轻度水肿。查体:桶状胸,两肺呼吸音弱,少量湿啰音,肺动脉瓣区第二心音亢进。该患者X线表现一般
_________是教学工作中的中心环节。
A.绝对收敛 B.条件收敛 C.等比级数收敛 D.发散A.绝对收敛B.条件收敛C.等比级数收敛D.发散
简要说明提取关键绩效指标的程序和步骤。[2010年5月二级真题] 相关试题:在审核关键绩效指标和标准时应当关注哪些要点?[2009年11月二级真题]
社会工作者的研究者角色是指社会工作者是()。A.专职做研究B.兼职做研究C.研究助理D.对服务对象的研究评估
《期货交易所管理办法》的制定目的包括()。A:明确期货交易所职责B:加强对期货交易所的监督管理C:维护期货市场秩序D:促进期货市场积极稳妥发展