单项选择题
A.intelligent … reluctant B.erudite… vigilant C.meaningless … skeptical D.scholarly … opinionated E. witty … theoretical
A.useful… fractious B.trenchant … ambitious C.deep-seated … difficult D.prophetic… envious E. truculent… unruly
A.sources… critics B.certainty… laymen C.shortcomings … experts D.jargon… readers E.theory… specialists