● The computer you are using is protected usually by (75) .
(75)
● All modern (74) are multitasking and can support running several processes simultaneously.
(74)
● The computer you are using is protected usually by (75) .
(75)
● The program and the data are kept inside the computer in a place called
(73) .
(73)
● The personal computer or (72) is the smallest general-purpose computer.
(72)
) ● (71 now plays a central role in the global economy.
(71)
● 评价信息系统时需要听取各有关方面的意见。在听取系统操作人员的意见时,主要讨论信息系统的 (70)
(70)
● 许多 企业对信息处理有及时性要求,原因是多方面的,但不包括(67) 。
(67)
● 自然人的软件著作权保护期为 (65) 。
(65)
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