What is the main idea of the passage？A．A doll－playing exercise may help to train new paren
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What is the main idea of the passage？
A．A doll-playing exercise may help to train new parents.
B．How couples play with dolls predicts their parenting style.
C．What preparation is needed to become new parents.
D．How co-parenting issues relate to a happier marriage.
请帮忙给出正确答案和分析，谢谢！
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正确答案：B
主旨题。文章首段即指出，研究显示夫妻与玩偶互动的方式可预测他们日后适应父母角色的情况，而此后各段分别介绍了研究的目的、方法、发现、局限和建议等，均围绕这一主题展开，故[B]为答案。