【判断题】在社会调查研究中,操作化是把抽象的概念具体化,使之变为经验层的、能够直接测量的概念的过程。()
【简答题】A. what if B. if only C. only if D. if not ____mom finds out that naughty Tommy has broken her expensive vase. We should do our homework quickly, ____ it won't be finished by next monday. ____ I were ...
【简答题】It being not only possible but even easy to predict which ten-year-old boys are at greatest risk of growing up to be persistent offenders, what are we doing with the information? Just about the last t...