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【单选题】
Questions 19 to 22 are based on the conversation you have just heard.
A.
It changes the body’s metabolism through rapid weight gain.
B.
It tricks the body into responding as if it were in a different time zone.
C.
It promotes increased alertness by adding snacks to the diet.
D.
It builds resistance to illness by increasing intake of vitamins.
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参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Do you want to live forever By the year 2050, you might actually get your wish — providing you are willing to leave your biological body and take up residence in silicon circuits. But long before then...
A.
human beings long for an immortal life
B.
people can live immortally as technology develops
C.
there are many difficulties in making the Soul Catcher
D.
the invention of Soul Catcher has great significance