首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Life Span About a century ago, the average life span for Americans was about 50 years. /Today, the typical American lives fo
Life Span About a century ago, the average life span for Americans was about 50 years. /Today, the typical American lives fo
admin
2018-04-04
76
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://kaotiyun.com/show/RTxK777K
0
专业英语四级
相关试题推荐
Manypeopleare______toinsectbites,andsomeevenhavetogotohospital.
Thethreementriedmanytimestosneakacrosstheborderintotheneighbouringcountry,_______bythepoliceeachtime.
______touchinginO’Henry’sstoriesisthegallantrywithwhichordinarypeoplestruggletomaintaintheirdignity.
ShouldHomosexualMarriageBeLegalized?Insomecountries,homosexualmarriagehasbecomelegal.Somepeopleallegethatit
A、Driedfish.B、Russiandelicacies.C、Noodles.D、Meat.D本题考查细节。由句(4)可知,男士称火车途中会停站几次,每个站台上都可以买到当地人售卖的食物,包括鱼干和其他种类的俄罗斯小吃,还有可以用开水加热
A、Goshopping.B、Tidythehouse.C、Gotochurch.D、Visitrelatives.A本题考查行为。由句(5一1)可知,女士说有人告诉她圣诞节后一天是购物的好日子。由句(5—2)可知,男士表示赞同,并告诉
A、Enduranceexercise.B、Flexibilityexercise.C、Cardio-vascularexercise.D、Strengthtraining.C本题考查细节。由句(3)可知,拉尔夫夫人提到第一种类型的运动,即
A、Hehastocontributemuchmoremoneythanbefore.B、Hehastochipinformorecolleaguesthanbefore.C、Hedoesn’tknowthep
随机试题
我国现代学制建立于()
溃疡性结肠炎所致腹泻特点为
哪种药物是选择性β受体阻滞剂,选择性阻断β1受体而不阻断β2受体()
在社区共同生活中,居民会逐渐形成与其他成员相似的行为或观念,能够与他人沟通,认同他人并得到他人的支持与认同。这体现了社区的()。
下面不属于软件开发阶段任务的是
EverybodywasgladadtoseeMaryback.
Weallknowthatitispossibleforordinarypeopletomaketheirhomesontheequator(赤道),althoughoftentheymayfeeluncomfor
Asmedicalevidencemountsthatweareindeedwhatweeat,consumingahealthierdiethasbecomealmostanationalpassioninth
Formanywomenchoosingwhethertoworkornottoworkoutsidetheirhomeisaluxury:Theymustworktosurvive.Othersfacea
Anewpartnerpushesouttwoclosefriendsonaverage,leavingloverswithasmallerinnercircleofpeopletheycanturntoin
最新回复
(
0
)