单项选择题

Compared to the modem cell phone, the conventional phone system ______.

A．makes every customer available to the network by wires
B．relies on a delicate mesh of thousands of antenna towers
C．is characterized by digital photography and Internet-based games
D．always faces the resistance from local government
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单项选择题
According to the passage, the problems cell phone industry is faced with involve the following EXCEPT ______.
A．lack of the capacity to handle calls on wireless systems due to the greatly increasing phone users
B．the plunge in prices for wireless service
C．lack of call centers to deal with the customers' complaints
D．the technical complexity of sending and receiving wireless calls
单项选择题
According to the passage, after the average per-minute cost dropped to 11 cents this year from 56 cents in 1995, the phone companies ______.
A．attracted more and more new users and as a result, they began to flourish
B．began to suffer from a great loss
C．made traditional phones more popular
D．invested much more money in creating new phones
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