单项选择题

Computers can provide information which allows businessmen to______ their list of goods, by showing which items are being sold and how fast they are moving.

A．keep track of
B．keep pace with
C．keep in touch with
D．keep company with
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单项选择题
Before suburbanization which began during the emergence of the industrial city, the city was a small highly compact cluster in which people moved around on foot and goods were ______by horse and cart.
A．conveyed
B．surveyed
C．forwarded
D．delivered
单项选择题
The hero in the book was______ by his enemies and left in a gas filled room, but he managed to escape.
A．bound up
B．tied up
C．locked up
D．knocked over
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