题目内容：
Mrs．John
A．You build your own future． B．Healthy lifestyle will be a more popular way to keep fit．
C．Computer will be an effective tool for doctors．
D．Doctors may not need pills for heart troubles or over- weight.
E．Your brain waves may be used to check out your work performance．
F．People will be able to visit doctors more frequently．
G．Our appetite will be well controlled by drugs．
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答案解析：