1 Compared with conventional beef, grass-fed beef is higher in this health-promoting nutrient, which gives its fat a yellow color:
1、与传统牛肉相比，草饲牛肉中某种有益健康的营养素含量更高，并让脂肪呈现黄色，这种营养素是：
Vitamin A
维生素A
Vitamin B
维生素B
Vitamin C
维生素C
Vitamin D
维生素D
2 Researchers found that having an “ambivalent” marriage, in which feelings of support from a partner waver, could jeopardize health. What percentage of couples they surveyed had ambivalent marriages?
2、研究人员发现，如果你的婚姻属于“矛盾型”，你感觉配偶对自己的支持时高时低，那么你的健康可能会因此受损。在接受调查的夫妇中，“矛盾”婚姻的百分比有多高？
23 percent
23%
45 percent
45%
59 percent
59%
77 percent
77%
3 A large analysis found that birth order had an effect on which of the following traits?
3、一项大型分析发现，出生顺序对以下哪方面产生了影响？
Extroversion
外向程度
Consientiousness
责任心
IQ
智商
All of the above
以上所有
4 Exercise, particularly during midlife, may slow cell aging by preventing the fraying of this part of the chromosome:
4、锻炼，特别是中年时期加强锻炼，可能会减缓细胞老化，防止染色体的哪个部分损耗：
Centromeres
着丝粒
Telomeres
端粒
Chromatids
染色单体
Arms
染色体两臂
5 This contraceptive method is associated with the lowest one-year pregnancy rate:
5、采用哪种避孕方法，一年内的受孕率最低：
IUD
宫内节育器
The “pill”
口服药
Condoms
避孕套
Cervical caps and sponges
宫颈帽和海绵
6 The World Health Organization placed processed meats like hot dogs and bacon in its Group 1 category, with “sufficient evidence” that they could cause cancer. Other carcinogens in this category include:
6、世界卫生组织将热狗和培根等加工肉制品列为1类物质，即有“充分证据”显示它们可能会导致癌症。此类别中的其他致癌物质包括：
Alcohol
酒精
Asbestos
石棉
Tobacco smoke
烟草烟雾
All of the above
以上所有
7 Obese children who cut their sugar intake showed lower blood pressure and improved cholesterol readings within:
7、肥胖儿童减少糖分摄入多久之后，血压会降低，胆固醇水平会得到改善：
10 days
10天
One month
一个月
Two months
两个月
Six months
六个月
8 Sleep apnea has been tied to excess levels of uric acid and may raise the risk of this painful condition:
8、睡眠呼吸暂停和尿酸水平过高有关，而且还可能引发哪种疼痛的病症：
Shingles
带状疱疹
Gout
痛风
Migraine
偏头痛
Sciatica
坐骨神经痛