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:
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2020-09-15
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