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            ¡¡¡¡Couch potatoes enjoy watching television just as "mouse potatoes" enjoy working on computers.  A computer mouse is the device(×°Öã¬É豸) that moves the cursor£¨¹â±ê£©on a computer screen. American writer Alice Kahn is said to have invented the word to describe young people who spend a lot of time using computers.
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            ¡¡¡¡£¨  £©51. What is a couch potato?
            ¡¡¡¡A. Someone who likes sitting or lying down while watching TV.
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            ¡¡¡¡C. Parents living alone without children are empty nesters.
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            ¡¡¡¡Radio took 38 years to attract 50 million people. TV took 13 years. The Internet used 4 years. But it took micro-blogs only 14 months to reach such a number.
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