题目内容
The anywhere-anytime access to internet has already yield _________ benefits in education.
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If the university can not deliver the high band-width information, it will be at a _________.
With the development of economy, the network has become an _________ part in people's life.
In an eara of _________ heroism, the word hero has become more common4
Life _________ can drive people into great grief and sometimes even lead to depression.
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