2. 外语
  3. According to David Blankenhorn, people commonly believe that ______. The 13 measures of psychological well-being are used to __

According to David Blankenhorn, people commonly believe that ______. The 13 measures of psychological well-being are used to __

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问题 According to David Blankenhorn, people commonly believe that ______.
The 13 measures of psychological well-being are used to ______.
选项 A、serve as the standards for choosing the subjects of the research
B、serve as the ways to help adults to get over their unhappy marriage
C、examine all the 5232 married adults
D、examine all the adults in the database
答案C
解析 第3段第3句中的the adults in the national sample指的就是已被抽样出来的受试者，即指第3段第1句提到过的5232 married adults，因此本题答案为选项C。第3段第3句表明这13项指标是用于分析the adults in the national sample的，言下之意，sample(subjects)都已经选好了，因此选项A的说法是错误的；该句也表示这13项指标是用于analyze受试者的，该段没有进一步说明如何帮助婚姻不幸福的夫妇克服困难，因此选项B不正确；本文的主题是婚姻状况，因此，13项指标所分析的对象应该也与主题密切相关，不需要分析数据库中的所有成年人，只要关注有婚姻状况的就行了，因此选项D覆盖范围过于宽泛，也不对。
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