题目内容
(请给出正确答案)
[单选题]
在PubMed数据库中,检索有免费全文的有关甲流的文献,可以用哪种过滤条件来限定()。
A.Publicationdates
B.Freefulltext
C.Languages
D.Species
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A.Publicationdates
B.Freefulltext
C.Languages
D.Species
A.CerebralHemorrhageANDtherapy
B."CerebralHemorrhage/therapy"[Majr]
C."CerebralHemorrhage/therapy"[Majr]ANDSystematic[sb]
D."CerebralHemorrhage/therapy"[Majr]Filter:SystematicReviews
A.breastcancer[ti]ANDsurgery[ti]publisdinthelast5years
B.BreastNeoplasms/surgery[Mesh]publisdinthelast5years
C.BreastNeoplasms[Mesh]publisdinthelast5years
D.breastcancersurgery[ti]publisdinthelast5years
A.Author-corporate
B.Author-first
C.Author-last
D.Author-full
A.万方数据库提供自由词检索途径
B.万方数据库不提供文献的PDF格式全文下载
C.在万方数据库中可以查询期刊论文
D.在万方数据库中可以查询某一导师所带研究生发表的论文