醫(yī)學信息檢索/醫(yī)學文獻檢索單項選擇題每日一練(2020.06.09)

A.三次文獻
B.零次文獻
C.二次文獻
D.一次文獻

A.Search fields
B.Subjects
C.Species
D.Article types

A.序列數(shù)據(jù)庫
B.結(jié)構(gòu)數(shù)據(jù)庫
C.圖譜數(shù)據(jù)庫
D.突變數(shù)據(jù)庫
E.文獻數(shù)據(jù)庫

A.color and blind
B.（color or colour）and blind
C.colo？r and blind
D.colour and blind

A.’heart attack’
B.’hip near/3 prosthesis’
C.’sleep disorder’/exp/mj/dm_dt，dm_th
D.fluorouracil/dd_ae，dd_it，dd_to