单项选择题

Many economists have given in to the fatal lure of mathematics.

A．error
B．puzzle
C．attraction
D．contradiction
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He was elevatedto the post of prime minister.
A．pulled
B．promoted
C．lifted
D．treated
单项选择题
Because administeringthe whole company, he sometimes has to work around the clock.
A．adjusting
B．evaluating
C．engaging
D．managing
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