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Questions 27—30 are based on the following interview on freezing humans. You now have 20 seconds to read Questions 27—30. How long will it be before Professor Morgan may be able to freeze human beings and revive them

A．About ten years.
B．About two years.
C．About twenty years.
D．About thirteen years.

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Questions 27—30 are based on the following interview on freezing humans. You now have 20 seconds to read Questions 27—30. How long will it be before Professor Morgan may be able to freeze human beings and revive them 您的浏览器不支持 audio 元素。