题目内容

WebSQL is a SQL-like (26) language for extracting information from the weB. Its capabilities for performing navigation of web (27) make it a useful tool for automating several web-related tasks that require the systematic processing of either ail the links in a (28) , all the pages that can be reached from a given URL through (29) that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common (30) Interface.

A. paths
B. chips
C. tools
D. directories

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To document your code can increase program (57) and make program easier to (58) .

A. reliability
B. security
C. readability
D. usability

Consumption of the total life-cycle effort in software maintenance is ______ that in software development.

A. less than
B. larger than
C. equal Or less than
D. equal or larger than

Maintenance activities include ______. ①making enhancements to software products ②developing a new software product ③correcting problems ④adapting products to new environments

A. ①②
B. ①③④
C. ②③④
D. ①②③④

根据《联合国销售合同公约》的解释，接受必须用声明或行动表示出来，沉默或不行动本身不等于接受。（）

A. 对
B. 错