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.

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热门试题

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 X10 system
C．is to transmit data by power lines within the house
D．fostered products which affected wireless network

单项选择题

According to the passage, wireless network has an advantage over the three products mere tioned in_______.

A．simplicity
B．speed
C．safety
D．price