单项选择题

23（）

A．of
B．in
C．on
D．for

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单项选择题
21（）

A．deed
B．need
C．fact
D．surprise
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.
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