单项选择题

A．He is out of town.
B．He is busy.
C．He is having a meeting.
D．He is abroad.
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单项选择题
A．In New York.B．In Boston.C．In Michigan.D．In Washington.
A．In New York.
B．In Boston.
C．In Michigan.
D．In Washington.
单项选择题
The passage tells us that some manufacturers, instead of changing their product, would prefer to change its ______.
A．product cost
B．packaging
C．quality
D．market value
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