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Teenagers________their health because they play computer games too much.

A．have damaged B．are damaging

C．damaged D．will damage

 

B

【解析】B　[考查時態(tài)。句意：因為青少年電腦游戲玩得太多，所以他們正在損害自己的健康。由句意可知，青少年損害健康這一現象正在發(fā)生，故用現在進行時。]

 

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