单项选择题
If a needle is thrown ______ on a sheet of paper ruled with lines, how often can it be expected to fall on a line
A．on purpose
B．with accuracy
C．at random
D．according to one’s own will
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单项选择题
More and more people these days are clamoring for full-body plastic surgery popularity in the world.
A．to attain
B．to sustain
C．gaining
D．obtaining
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单项选择题
Success as ______ by economic output bears no close relationship to human achievement.
A．decided
B．achieved
C．assured
D．measured
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