单项选择题

The company has been producing this model of machine tool______2008．

A．since
B．after
C．for
D．before
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单项选择题
The next board meeting will focus______the benefits for the employees．
A．by
B．for
C．with
D．on
单项选择题
The repdrt gives a______picture ofthe company's future development．
A．central
B．clean
C．clear
D．comfortable
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