No clear-cut distinction can be draw between professionals and amateurs in science. ( ) the word ‘amateur’ does carry a connotation that the person concerned is not fully integrated into the scientific community.
问题1选项
A.Nevertheless
B.Then
C.Besides
D.As a result
考查副词和词组辨析。A选项nevertheless“然而,不过”;B选项then“然后;于是”;C选项besides“此外;而且”;D选项as a result“结果;因此”。句意:在科学领域,专业人士和业余爱好者之间划不出泾渭分明的界线。然而,“业余”一词的确意味着相关人员不能充分融入职业科学界。由题干中的“does carry a connotation确实暗示着”可知与前面存在转折关系,因此A选项正确。