单项选择题

What was the most important reason for the U. S. government to stop the Vietnam War and withdraw the troops

A．The economy.
B．The expenses.
C．The lasting time was too long.
D．The antiwar movements both inside and outside the country.
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单项选择题
According to the author, his friend has bought a television in order to_____.
A．know the current events
B．entertain himself at leisure time
C．escape from the reality
D．kill time
单项选择题
The author's attitude towards television is______.
A．enthusiastic
B．impartial
C．criticizing
D．indifferent
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