单项选择题

The manager promised in his address to the working staff to ___________ the success of last year's profits.

A．accelerate
B．repel
C．duplicate
D．enlarge
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单项选择题
It remains a mystery that how the ancient Egyptians could ___________ the huge stone blocks to build those pyramids.
A．hoist
B．tow
C．hurl
D．toss
单项选择题
Today's compartments on the train are ___________ and well-equipped, so the travels have become comfortable and safe.
A．exotic
B．intact
C．compact
D．shabby
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