单项选择题

In the improvement of communication, which is NOT mentioned as one of the most important inventions of the 20th century

A．The Internet.
B．The telephone.
C．The television.
D．The telegrap
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单项选择题
What is the main idea of the passage
A．The world is shrinking physically.
B．The 20th century saw incredible inventions..
C．The way we live and communicate has changed over the centuries.
D．The computer revolution has made life more convenient.
单项选择题
What advantage did the 20th century have over the 19th century
A．The new invention of the train made traveling possible.
B．Information could be spread immediately.
C．People didn’t get as much exercise anymore.
D．Travelling by boat was still dangerous.
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