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
财务会计
请阅读Passage 1,完成题: Modern scientists div
请阅读Passage 1,完成题: Modern scientists div
题库总管
2019-12-17
26
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.The best statement of the main idea of this passage is that__________.查看材料
选项
A.scientists have found a way to prolong the period of clinical deathB.biological death occurs when vital organs have suffered permanent damageC.modern scientists divide the process of dying into clinical and biological deathD.cooling delays the processes leading to biological death
答案
A
解析
A项“科学家已找到延长临床死亡的办法”最能够体现全文主旨。
转载请注明原文地址:https://ti.zuoweng.com/ti/RsSlKKKQ
相关试题推荐
请阅读Passage2,完成第小题。 Passage2 Crash.S
请阅读Passage2,完成第小题。 Passage2 Crash.S
请阅读Passagel,完成第小题。 Passage1 Jatender
请阅读Passage2。完成第小题。 Passage2 TheWorld
请阅读Passage2。完成第小题。 Passage2 TheWorld
请阅读Passage2。完成第小题。 Passage2 TheWorld
请阅读Passage2。完成第小题。 Passage2 TheWorld
Passage2 Ifthepopulationoftheeart
Passage2 Ifthepopulationoftheeart
Passage2 Ifthepopulationoftheeart
随机试题
金融负债和权益工具区分的基本原则包括()。 A、是否存在无条件地避免交付现金或
石灰有效钙镁含量测定时,要将石灰完全溶解于水中,通过化学滴定的方法进行检测。()
为了配合当地举办一项盛会,某施工现场暂停施工,按照相关规定,施工单位应当做好现场
Accordingtothepassage,coolinganorg
以下()不是我国《公司法》以股东承担责任的范围和形式、股东人数多少分类的。
期货公司的交易软件、结算软件不符合要求的,国务院期货监督管理机构有权要求期货公司
敷设在高层建筑室内的塑料排水管管径大于或等于110mim时,应设阻火圈的位置有(
在技能形成过程中,练习中期出现进步的暂时停顿现象在心理学上称为( )。 A.挫折现象 B.抑制现象 C.低谷现象 D.高原现象
从古至今都没有长生不老的人,但每个人的寿命都极不相同,从生物学和医学上来看,人类的寿命应该有一个生物学上的最大值,不过目前尚不能确定人类的最高寿命有多高。...
埋设于城市道路下面的各种管线、设施应坚持()建设原则。A、先难后易B、先地下,后地上C、先有压管后无压管D、先大管后小管