单项选择题

The promising idea mentioned in the first paragraph ______.

A．has mature technology to support it
B．has a stable early application—the Xl0 system
C．is to transmit data by power lines within the house
D．fostered products which affected wireless network
<上一题 目录 下一题>
热门 试题

单项选择题
Who will probably most welcome the three products
A．People whose house has no space for wireless system.
B．People whose house cannot receive images, sounds or messages.
C．People who have no extra money to afford wireless system.
D．People who prefer to do things in a simpler way.
单项选择题
It can be inferred from the passage that the new products of Panasonic, Netgear, Marantz ______.
A．can directly move data by home electrical wiring
B．are adapters or a similar system to transfer data
C．provide the present Wi-Fi criteria for wireless networking
D．were produced for home electrical lines last month
相关试题