This reflects the priority being attached to economic over political activity, partly caused by a growing reluctance to enter a calling blighted by relentless publicity that all too often ends in destroying careers and reputations.

A．powerfulness

B．unwillingness

C．renaissance

D．apologeticness

下列说法中符合弗洛伊德关于心理结构的看法的是( )。

A．人的心理结构缺乏层次性

B．心理结构与心理防御机制的含义相类似

C．由潜意识、前意识和意识构成

D．是心理活动的基本动力