单项选择题

Wireless technology is introduced as

A．an important fruit in daily life.
B．a supplement to cable communications.
C．the opening of a new uncabled era.
D．a new type of monopoly.
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单项选择题
According to the passage, the Wi-Fi standard
A．is based on the conventional wisdom.
B．adopted an unlicensed part of the spectrum.
C．relies on the standards by the giant corporations.
D．is created solely by some geeks.
单项选择题
From the author's point of view, the Wi-Fi technology
A．will be replaced soon.
B．will be controlled by giant corporations like Apple.
C．will extend to every home and office.
D．will become a necessity as a modem.
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