首页
登录
职称英语
[audioFiles]2018m4s/audio_ezfj_201804_125[/audioFiles]
[audioFiles]2018m4s/audio_ezfj_201804_125[/audioFiles]
游客
2023-10-28
48
管理
问题
选项
答案
Life Span
About a century ago, the average life span for Americans was about 50 years. /Today, the typical American lives for around seventy-eight years. /What accounts for such increased longevity? /Between 1900 and 1950, inventions such as refrigeration and sewage treatment meant that/young people were able to survive longer. /Moreover, medical breakthroughs helped contain diseases/such as some fatal ones that killed many children. /These advances helped increase the average life span. /This means that future medical breakthroughs will result in even longer average life span.
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3137885.html
相关试题推荐
[audioFiles]2018m4s/audio_ezfj_201804_121[/audioFiles]What
[audioFiles]2018m4s/audio_ezfj_201804_028[/audioFiles]TheFreeHugsCampaig
[audioFiles]2018m4s/audio_ezfj_201804_161[/audioFiles]AMi
[audioFiles]2018m4s/audio_ezfj_201804_020[/audioFiles]AIDSWhenAIDSfi
[audioFiles]2018m4s/audio_ezfj_201804_018[/audioFiles]Children’sHealth
[audioFiles]2018m4s/audio_ezfj_201804_017[/audioFiles]IdiomsAnidiomi
[audioFiles]2018m4s/audio_ezfj_201804_016[/audioFiles]ArtificialIntelligen
[audioFiles]2018m4s/audio_ezfj_201804_109[/audioFiles]T
[audioFiles]2018m4s/audio_ezfj_201804_149[/audioFiles]
[audioFiles]2018m4s/audio_ezfj_201804_177[/audioFiles]
随机试题
[originaltext]Choosingwhattoeatseemslikeasimpledecision,butvariou
[originaltext]W:Darling,Ifeelhungrynow.Howaboutyou?M:SodoI.Letmecal
关于土的标准贯入试验,下列何种说法是不正确的?()A.打击触探杆的穿心锤质量
近期,我国批准成立了一些消费金融公司,向个人和家庭提供消费贷款。消费贷款之所以有
强迫症状主要见于下列疾病A.精神分裂症 B.抑郁症 C.神经衰弱 D.恐惧
男,29岁,风湿性心脏病15年,平时一般活动症状不多。2天来明显心悸,稍事活动即
英文缩写词"DHA"的中文全称是A.二十二烷六烯酸 B.熊去氧胆酸 C.去甲
下列四个选项的图形中,能由所给图形转动而成的是: A.如上图所示 B.如
社会治安秩序是指( )A.社会秩序 B.生产秩序和工作秩序 C.人民群众生
某药材略呈圆柱形或半球形,体轻,质松而韧,横断面可见外层为海绵状物,内层为许多放
最新回复
(
0
)