单项选择题

Which of the following are not expected within the next 5 years()

A．Talking on giant screens.
B．Automatic language translators.
C．Computers that respond to brain waves.
D．Computers that do not need wires.

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单项选择题

How will wireless computers and Internet services help rural areas()

A．One of the biggest barriers to Internet use is getting wires into rural areas.
B．The wireless computers will be cheaper.
C．People in rural areas don't have anything else to do.
D．People in rural areas already have wireless boxes on their roofs.

单项选择题

In which case mentioned in the passage would an automatic language translator be helpful（）

A．A medical emergency.
B．Police action.
C．Traveling.
D．All of the abov