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Fill in the blanks with the corresponding Chinese expressions that list below.
(写出下列词组的汉语。 共20分，每题2分)



1．central processing unit（CPU）
2．operating system
3．hard disk
4．management information system
5．electronic commerce
6．data warehouse
7．Software engineering
8．Property Window
9． machine language
10．computer virus

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出自：国家开放大学计算机英语

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