单项选择题

Which of the following is most likely to be bugged

A．International telephone calls.
B．International printed messages.
C．Domestic printed messages.
D．Electric typewriters.
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单项选择题
What is the author's attitude towards eavesdropping
A．Admiration.
B．Worry.
C．Fury.
D．Unconcern.
单项选择题
Which is the best title for the passage
A．Fight against Eavesdropping.
B．A New Breakthrough.
C．No Place to Hide.
D．An Impassioned Warning.
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