单项选择题

He was so convinced that people were driven by ______ motives that he could not believe that anyone could be unselfish.

A．selfless
B．personal
C．ulterior
D．remarkably
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单项选择题
The economy in this region has been stagnant for a long time and no signs of recovery have ______ till now.
A．shown up
B．kept up
C．picked up
D．made for
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