单项选择题

Greater knowledge of the universe could ______ important changes in the outer space traveling.

A．take back
B．break out
C．bring about
D．keep out
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单项选择题
I was persuaded to do the job, ______ I didn't want to.
A．lest
B．in order that
C．even though
D．in case
单项选择题
Would you mind telling me the possibilities of my success ______
A．forward
B．in 'advance
C．primarily
D．now and then
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