搜题
王老师:19139051760(拨打)
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第1题

operating system
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第2题

( ) There will be‖________,‖ so you won’t have to wait for your PC to come to life. A.fast-on B.quick-on C.instant-on
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第3题

( ) A (an) _______ is a destructive program which fills a computer system with self-replicating information, clogging（堵塞
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第4题

( ) All data transmitted over the Internet _______ small units of information called packets. A.is used for B.is added
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