2. 外语
  3. An important consequence arises because the social security program is purely pay-as-you-go financed,_____most pension plans, at

An important consequence arises because the social security program is purely pay-as-you-go financed,_____most pension plans, at

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问题 An important consequence arises because the social security program is purely pay-as-you-go financed,_____most pension plans, at least in the private sector, are fully funded. Thus, greater contracting-out implies greater prefunding of pension commitments.
选项 A、whereas
B、because
C、so that
D、therefore
答案A
解析 空白处前后两个分句形成转折对照关系。空白处前说“社会保障项目是量入为出提供资金的”，空白处后面说“大多数养老计划是全额提供资金”，形成转折关系，A选项whereas表示“然而”，引导与主要子句成对照或相反的子句，符合题意。其他选项均表示因果关系，不符合前后两个分句的关系，故排除。因此，A选项正确。
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