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Will E-mail Replace Hand-written Letter
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Since last year, Professor Wang ______(研究取得了重大进展).
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What is true about the study of 1,000 people born in 1920
A．It shows working is also good for people’s physical health.
B．The participants were tracked over a 14-year period and then investigated at 70.
C．Retirees will live another 12 years if they keep on working.
D．It finds the 70-year-olds would increase by 2.5 times to be alive at age 82 if they kept working.
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