单项选择题

About one quarter of the workers in the country are employed in factories.

A．third
B．fourth
C．tenth
D．fifteenth
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Many economists have given in to the fatal lureof mathematics.
A．error
B．puzzle
C．attraction
D．contradiction
单项选择题
He was elevatedto the post of prime minister.
A．pulled
B．promoted
C．lifted
D．treated
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