单项选择题

The introduction of gunpowder gradually made the bow and arrow ______ , particularly in Western Europe.

A．obscure
B．obsolete
C．optional
D． overlapping

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单项选择题

The individual TV viewer invariably senses that he or she is ______ an anonymous, statistically insignificant part of a huge and diverse audience.

A．everything except
B．anything but
C． no less than
D． nothing more than

单项选择题

However,growth in the fabricated metals industry was able to _____ some of the decline in the iron and steel industry.

A．overturn
B．overtake
C． offset
D． oppress

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