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A．It is also useful to get rid of a bad mood.
B．It is too hard to do good to people’s health.
C．It may boost the heart rate.
D．It is hardly effective in altering mood.
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A．Boeing 747 Jumbo.B．Airbus A380.C．European Airbus.D．Boeing 787 Dream liner.
A．Boeing 747 Jumbo.
B．Airbus A380.
C．European Airbus.
D．Boeing 787 Dream liner.
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