单项选择题

A．By copying each other’s technology.
B．By incorporating features that make their products distinctive.
C．By making their computers more expensive.
D．By making their computers run much faster.
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单项选择题
A．In the restaurant.B．At the airport.C．In the hotel.D．In the bus.
A．In the restaurant.
B．At the airport.
C．In the hotel.
D．In the bus.
单项选择题
A．Because they have new features and functions.B．Because they are more sophisticated than other models.C．Because they have new accessories attached.D．Because it wants to accumulate funds for future research.
A．Because they have new features and functions.
B．Because they are more sophisticated than other models.
C．Because they have new accessories attached.
D．Because it wants to accumulate funds for future research.
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