1·C阶层指的是那些家庭收入从1064至4591雷亚尔(以目前换算比例约为609美元至2603美元).
Class C covers households with a monthly income ranging from 1, 064 to 4, 591 reais (about $603-2, 603 at current exchange rates).
2·不过她研究的是1064对女性双胞胎。其研究结果发表在2009年《头痛》杂志上，支持一般的基因联系观点。
But her study of 1, 064 pairs of female twins, published in the journal Headache in 2009, supports the idea of a common genetic link.
3·情绪倾向于以数周或数月为间隔在兴奋状态和抑郁状态间循环（评分较高提示双相情绪障碍）。
Mood tends to cycle over intervals of weeks or months between excited and depressed states (high placement implies bipolar mood disorder). 064.