单项选择题

A．It helps people work efficiently.
B．It’’s more refreshing than soda.
C．It should be drunk in moderation.
D．It has less flavor than tea.
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单项选择题
A．They will remain where they are.B．They will leave this area for ever.C．They will turn to experts for advice.D．They will seek shelter in nearby regions.
A．They will remain where they are.
B．They will leave this area for ever.
C．They will turn to experts for advice.
D．They will seek shelter in nearby regions.
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industrial
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