题目内容
(请给出正确答案)
[单选题]
____ abstracts usually describe what the paper is about, the topic, purpose, scope, an
A.Informative
B.Suggestive
C.Descriptive
D.Positive
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A.Informative
B.Suggestive
C.Descriptive
D.Positive
A.Informative
B.Negative
C.Descriptive
D.Sensitive
A.EBSCOhost
B.Springer Link
C.ProQuest
D.OvidSP
A.themes
B.insights
C.digests
D.leaflets
下列哪些来源信息属于灰色文献信息
A.国家图书数据库与目录库
B.相关学术组织或机构网页及超级链接
C.学位论文摘要(disserta tions abstracts)
D.WHO年度报告
E.专业学术杂志论著
【C14】
A.like before
B.as usually
C.like always
D.as usual
A、than usual
B、as usual
C、like usual
D、like usually