英語四級仔細(xì)閱讀習(xí)題原文：

　　英語四級仔細(xì)閱讀習(xí)題：

　　26. This passage focuses on_______.

　　A. the difference between biological and clinical death.

　　B. the process of dying

　　C. prolonging the period of clinical death

　　D. the nature of clinical death

　　27. The best statement of the main idea of this passage is that

　　A. modem scientists divide the process of dying into clinical and biological death

　　B. biological death occurs when vital organs have suffered permanent damage

　　C. scientists have found a way to prolong the period of clinical death

　　D. cooling delays the processes leading to biological death

　　28. One characteristic of clinical death is______.

　　A. lasting damage to the lungs B. destruction of the tissues

　　C. temporary non-functioning of the heartD. that the organism cannot be revived

　　29. According to the passage, cooling an organism

　　A. speeds up the body's metabolism B. slows disintegration of body tissues

　　C. prevents damage to organs D. revives damaged organs

　　30. One possible benefit of the experiment discussed in the passage is______.

　　A. less crowded cities B. victory over death

　　C. protection against fatal injury D. fewer deaths from heart attacks

　　英語四級仔細(xì)閱讀習(xí)題答案：

　　26. C 27. C 28. C 29. B 30. D

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