单项选择题

Which of the following is NOT true

A．Tile higher one climbs, the less oxygen he will breathe.
B．The higher one climbs, the more dangerous it will be.
C．The faster one climbs, the less oxygen he needs.
D．The faster one's heart beats, the thicker one's blood becomes.
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单项选择题
In this passage the words gobble up mean _______.
A．eat up very fast
B．catch up with
C．get rid of
D．hold back
单项选择题
Men who made the early maps showed that the center of the earth as _______.
A．the Sea of Darkness
B．Europe and Asia
C．swamps and deserts
D．ice mountains
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