单项选择题

A．It conserves battery power.
B．It lets your laptop rest.
C．It makes your laptop easy to control.
D．It replaces screen saver.
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单项选择题
A．Problems the man has encountered when writing his history paper.B．The man’s broken computer.C．The reason why staring at computer screen makes eyes hurt.D．The woman’s article on the newspaper about eyes.
A．Problems the man has encountered when writing his history paper.
B．The man’s broken computer.
C．The reason why staring at computer screen makes eyes hurt.
D．The woman’s article on the newspaper about eyes.
单项选择题
A．He was ill for more than a month.B．He was ill but had a happy holiday.C．His holiday was mined because of his illness.D．He was in bed for a week.
A．He was ill for more than a month.
B．He was ill but had a happy holiday.
C．His holiday was mined because of his illness.
D．He was in bed for a week.
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