单项选择题

A．Water from inland seas.
B．Rainwater.
C．Sewerage.
D．Water from mountain streams.
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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.
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.
单项选择题
A．Sixteen below zero.B．Six below zero.C．Sixteen above zero.D．Six above zero.
A．Sixteen below zero.
B．Six below zero.
C．Sixteen above zero.
D．Six above zero.
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