单项选择题

But from the start of their experiments, the Wright brothers found that they needed money to pay _______ their research.

A．back
B．down
C．for
D．off
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单项选择题
Japan is still ______ on Middle Eastern oil.
A．reliable
B．imposing
C．dependent
D．independent
单项选择题
The story you have just told ______ me of an experience I once had.
A．informs
B．convinces
C．reminds
D．warns
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