单项选择题

The workers were paid ______ in this factory.

A．by an hour
B．by hour
C．by the hour
D．by hours
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单项选择题
Which of the following sentences is NOT true according to the passage
A．All kinds of people can play chess.
B．Only two people can play chess sitting at the same table.
C．Some people write to each other while playing each other.
D．The Russians once lost the game played by radio.
问答题
( )沃尔沃 ( )别克
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