单项选择题

The year 2000 problem is caused by ______.

A．a mad person
B．the inappropriate usage of the computers
C．people's misunderstanding of how fast time elapses
D．the bad quality of the computers
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单项选择题
After the first 18 months of sales, how many people began to use DVDs
A．Less than a million.
B．A million.
C．More than a million.
D．2 million.
单项选择题
What's the attitude of the author towards the digital gadgets
A．Optimistic.
B．Pessimistic.
C．Worrying.
D．Not care at all.
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