单项选择题

In the passage, the author includes all of the following EXCEPT ______.

A．a business principle
B．a definition of productivity ....
C．an example of a successful company
D．an illustration of a process technology
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单项选择题
A．America.B．Australia.C．Asia.D．Europe.
A．America.
B．Australia.
C．Asia.
D．Europe.
单项选择题
A．Now, there are no wars and people live in a peaceful world.B．More children can live to their adulthood and have their own children.C．People live longer now than in the past.D．People immunize many fatal diseases of which many people died.
A．Now, there are no wars and people live in a peaceful world.
B．More children can live to their adulthood and have their own children.
C．People live longer now than in the past.
D．People immunize many fatal diseases of which many people died.
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