内部配偶体不同的地钱。
如果其他的所有措施都失效，新兴经济体还可以孤注一掷：他们可以集中精力，把自己变成一个配偶不愿居住的地方。
And if all else fails, emerging economies have one last resort. They can concentrate on becoming somewhere a spouse would not want to live.
是否存在某一人体基因，影响着我们维持单配偶关系的倾向性呢？
Is there a human gene affecting our propensity to bond with a single mate?
因为她们大多数人希望找个黑人丈夫——96%已婚黑人妇女的配偶是黑人——其结果是都在同一群体中择偶。
Because most seek husbands of the same race-96% of married black women are married to black men-they are ultimately fishing in the same pool.
研究人员十分明确这一群体中人们之间的关系，包括朋友、配偶、兄妹或邻居关系，以及过去三十年间不同时期每个人的体重。
The investigators knew who was friends with whom, as well as who was a spouse or sibling or neighbor, and they knew how much each person weighed at various times over three decades.
研究人员十分明确这一群体中人们之间的关系，包括朋友、配偶、兄妹或邻居关系，以及过去三十年间不同时期每个人的体重。
The investigators knew who was friends with whom, as well as who was a spouse or sibling or neighbor, and they knew how much each person weighed at various times over three decades.
应用推荐