2013高考英语二轮复习专题限时训练
专题限时训练(二十八) [科普知识型阅读理解(二)]
(限时：25分钟)
(一)
How you end a computer session depends on how you use the computer，your views on energy conservation ( 能源的节约), and what you have been told about how your decision will affect your investment’s longevity: will frequent starting and stopping cause its circuits(电路) to burn out sooner?
Rest easy，your computer is more likely to be damaged by a virus picked up from th
