You have passed this set of homework, please see the correct answer.
1. () is the percentage of relevant information retrieved to the total information retrieved.
A. Accuracy B. Recall rate
C. False detection rate D. Missed detection rate
Reference answer: A Your answer: A.
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2. Boolean logic expression: the retrieval result of transgenic and food safety is ()
A.b. literature on genetically modified foods
C. Food safety literature D. Genetically modified or food safety literature
Reference answer: A Your answer: A.
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3. The literature directly based on my practical experience in production, scientific research and social activities is ().
A. zero-level documents B. first-level documents C. second-level documents D. third-level documents
Reference answer: b Your answer: b
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4. The following documents do not belong to the literature ().
A. Journal papers B. Patent documents C. Scientific reports D. Textbooks
Reference answer: D Your answer: D
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5. Summarize the main contents of the literature with concise words, including research purposes, viewpoints, research methods, data and conclusions. The retrieval tool is ().
A. Table of Contents B. Title C. Index D. Summary
Reference answer: D Your answer: D
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6. Boolean logic expression: "A or B" or "A+B" means to find out ().
A. documents containing one or both of a and b or AB
B. A collection of documents containing these two words
C. documents containing search term a but not containing search term b
D. documents containing search term b but not search term a.
Reference answer: A Your answer: A.
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7. The database that can retrieve periodical papers in CNKI digital resources is ().
A. China periodical full-text database
B. Full-text database of excellent doctoral and master's dissertations in China.
C. Full-text database of important conference papers in China
D. Full-text database of important newspapers in China
Reference answer: A Your answer: A.
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8. The database that can retrieve monthly and quarterly statistical data such as statistical yearbook, customs statistics and economic statistics express from national and provincial and municipal local statistical agencies is ().
A. VIP full-text database of Chinese sci-tech periodicals
B. Statistical database of China
C. Full-text database of China Journal Network
D. Full-text database of academic conference papers in China
Reference answer: b Your answer: b
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9. Bibliographic query mainly through ()
A. Search engines
B. Periodical paper database
C. Bibliographic inquiry system of university library or information department
D. Dissertation database
Reference answer: C Your answer: C.
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10. To retrieve the information about "the influence of water stress on the yield of wheat and corn", the retrieval strategy is ().
A. Wheat * Maize * Water Stress * Yield
B. (wheat+corn) * (water stress+yield)
C. (wheat+corn) * water stress * yield
Wheat+maize+water stress+yield
Reference answer: C Your answer: C.
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1 1. Literature retrieval is mainly to obtain ()
A. Journal papers B. Conference papers
C. Book or periodical collection information
D. Paper E. Statistical data
Reference answer: A, B, D, E Your answer: A, B, D, E.
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12. The main fields of the abstract database include ()
A. Title of the paper B. Author C. Source of the document
D. Periodical collection information E. Abstracts of papers
Reference answer: A, B, C, E Your answer: A, B, C, E.
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13. Description items of the directory include ()
A. Name of publication B. Person in charge
C. Publishing project D. Abstracts of papers E. Audit project
Reference answer: A, B, C, E Your answer: A, B, C, E.
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14. Bibliographic query is mainly through ()
A. Search engines
B. Periodical paper database
C. Bibliographic inquiry system of university library or information department
D. Dissertation database
E. parliamentary documentation database
Reference answer: C Your answer: C.
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15. The information that can be found through the encyclopedia is ()
A. Basic concepts B. Journal papers C. Statistical data
D. Paper E. Major events
Reference answer: A, C, E Your answer: A, C, E.
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16. The commonly used reference books are ()
A. Encyclopedia B. Dictionary C. Textbook
D. Search magazine E. Yearbook
Reference answer: A, B, E Your answer: A, B, E.
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17. Features of the patent ()
A. Exclusive B. Regional C. * * * Enjoy
D. Free use E. Timeliness
Reference answer: A, B, E Your answer: A, B, E.
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18. The types of patents in China are ().
A. Invention patents B. Plant patents C. Industrial property rights
D. Design of utility model
Reference answer: A, D, E Your answer: A, D, E.
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19. When China periodical database adopts classified retrieval, the classification used is ().
A. China Library Classification
B. China Library Classification
C. international patent classification
D. Dewey classification
E. international decimal classification
Reference answer: A Your answer: A.
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20. China periodical full-text database retrieval portal ()
A. Title B. Title C. Author D. Keywords E. Fund
Reference answer: A, B, C, D, E Your answer: A, B, C, D, E.
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Set 2
You have passed this set of homework, please see the correct answer.
1. () is the percentage of related documents detected and all documents detected.
A. Accuracy B. Recall C. False detection D. Missed detection
Reference answer: b Your answer: b
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2. Boolean logical expression: the retrieval result of NOT (youth and teacher) for on-the-job personnel is ().
A. retrieve the data of in-service personnel except young teachers.
B. Data on young teachers
C. data on youth and teachers
D. Active personnel data
Reference answer: A Your answer: A.
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3. The three basic elements of literature information are (), material carrier and information symbol.
A. Paper B. Disk C. Information content D. Text
Reference answer: C Your answer: C.
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4. Boolean logic expression: "A and B" or "A×B" means to find out ().
A. documents containing one or both of a and b or AB
B. A collection of documents containing these two words
C. documents containing search term a but not containing search term b
D. documents containing search term b but not search term a.
Reference answer: b Your answer: b
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5. Bibliographic database mainly provides ()
A. primary literature B. secondary literature C. tertiary literature D. zero-level literature
Reference answer: b Your answer: b
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6. Use the selected retrieval tools to search from near to far year by year until you find the required literature. The retrieval method is ()
A. Reverse investigation B. Sequential investigation C. Retrospective method D. Spot check method
Reference answer: A Your answer: A.
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7. The purpose of bibliographic information retrieval is to obtain ()
A. Journal papers B. Conference papers
C. Information collection of required books or periodicals
Reference answer: C Your answer: C.
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8. Search the paper "Rapid Detection of Highly Pathogenic Avian Influenza Virus", and the search strategy should be ().
A. Rapid detection of highly pathogenic avian influenza virus
B. Highly pathogenic avian influenza+virus+rapid detection
C. (Highly pathogenic avian influenza+virus) * Rapid detection
D. Highly pathogenic avian influenza * (virus+rapid detection)
Reference answer: A Your answer: A.
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9. The basic feature of this manual is ()
A. pay attention to revealing the inherent characteristics of literature. B. The content is novel and published continuously.
C. The description indicates the source D. The information received focuses on basic knowledge and practicality.
Reference answer: D Your answer: D
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10. The database where personal information of experts can be retrieved is ().
A. China character library
B. Full-text database of excellent doctoral and master's dissertations in China.
C. Full-text database of important conference papers in China
D. Full-text database of important newspapers in China
Reference answer: A Your answer: A.
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1 1. Clue reference books are used to find literature clues, including ().
A. Table of Contents B. Index C. Abstract D. Bibliography E. Dictionary
Reference answer: B, C, D Your answer: B, C, D.
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12. There are three main systems for collating and checking reference books, namely ().
A. Word order method B. Formal order method C. Class order method
D. Natural sequence method E. Phonetic sequence method
Reference answer: A, C, D Your answer: A, C, D.
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13. The types of book content index include ().
A. Title index B. Subject index C. Word and phrase index
D. proper name index e. personal name index
Reference answer: B, C, D Your answer: B, C, D.
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14. The directory can be divided into () according to its content.
A. Directory of institutions B. Directory of personnel C. Directory of places
D. Directory of other things, such as address book
Reference answer: A, B, C, D Your answer: A, B, C, D.
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15. The types of spectra generally include ().
A. chronology
D. Chronicle E. Special symbols
Reference answer: A, C, E Your answer: A, C, E.
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16. The three files mainly include ()
A. Yearbook B. Comment C. Abstract D. Encyclopedia E. Abstract
Reference answer: A, B, C, D Your answer: A, B, C, D.
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17. Secondary documents mainly include ()
A. Abstract B. Index C. Manual D. Bibliography E. Yearbook
Reference answer: A, B, D Your answer: A, B, D.
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18. The characteristic of reference books is ()
A it is searchable, and there is a lot of information for people to refer to, so as to solve related problems.
B. discuss specific issues or disciplines to provide more systematic knowledge and opinions.
C it is general, and the collected data are selected, compared or discussed in detail.
D. according to the problem or the subject itself, it is divided into chapters and sections.
E is easy to find and has a certain arrangement style, either by radicals, strokes or alphabetical order.
Reference answer: A, C, E Your answer: A, C, E.
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19. Documentary database is stored in the form of files, including ().
A. Original literature database (full-text database)
C. Second-hand literature D. Fact database E. Concept database
Reference answer: A, D Your answer: A, D.
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20. Non-literature database refers to a database that can directly provide original data or specific data, and users don't have to consult other information sources, including ().
A. fact database B. original literature database (full-text database)
C. Concept database D. Fact database E. Image database
Reference answer: C, E Your answer: C, E.
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