按制定标准的不同层次和适应范围,标准可分为国际标准、国家标准、行业标准和企业标准等,(30)制定的标准是国际标准。
(66)
(65)
(64)
(63)
The Internet is a(66)network of networks which interconnects(67)ranging from the simplest personal computers to the most sophisticated mainframes and supercomputers. This network of networks is used for an extraordinary range of purposes long distance collaborations, retrieving free software and documents,(68)library catalogs,(69)in to supercomputers - the list of current Internet activities and(70)is large and the range of possible future applications is as unlimited as our imagination.
When a string constant is written in C program, the compiler creates(75)of characters containing the characters of the string, and terminating it with "\O".
(74)functions with two layers of protocols. It can connect networks of different speeds and can be adapted to an environment as it expands.
A disk scheduling mechanism in an operating system causes the disk arm to sweepbackand forth across the disk Surface servicing all requests in its path. This is a(73).
Which of the following statements about object oriented database is not correct?(72).
Let R and S be the relation respectively: Relation R:A B C Relation S:B C D 1 2 3 2 3 4 6 7 8 2 3 5 9 7 8 7 8 1 The number of tuples that the result of the expression R ∞ S( Here is the natural join of relations R and S)is(69).
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