单项选择题

Which of the following can best serve as the title of the passage

A．Communications.
B．Computers.
C．Telecommunications.
D．Glass-fiber Technology.
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单项选择题
What led to the idea of forming the Red Cross
A．War.
B．Providing services.
C．Natural disasters.
D．Providing blood.
单项选择题
Which is NOT mentioned as a way of telecommunications
A．Telephones are linked to home computers.
B．Television sets are connected to home computers.
C．Home computers are tied to radio stations.
D．Home computers are connected to telegraph
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