A．Napping for 2 hours is better than for 40 minutes.
B．It does not revive you if the nap lasts too long.
C．You should never take a nap after lunch.
D．The longer you sleep, the better you will feel.
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A．Create a comfortable sleeping environment.
B．Prioritize sleep if you are haunted by sleeplessness.
C．Climb into bed early and lie awake to relax.
D．Show perseverance and prepare for a long battle.
A．$600m.
B．$10bn.
C．$2.5bn.
D．$2,500.
A．15 evacuated, 2 seriously injured, 5 missing.
B．15 evacuated, 2 moderately injured, 5 missing.
C．50 evacuated, 2 moderately injured, none missing.
D．50 evacuated, 2 seriously injured, none missing.