首页
登录
职称英语
How old are the children to be immunized? [br] [originaltext]Tens of thousands
How old are the children to be immunized? [br] [originaltext]Tens of thousands
游客
2023-10-19
57
管理
问题
How old are the children to be immunized? [br]
Tens of thousands of health workers will go house to house over the next three days in an effort to immunize 63 million children under the age of five in sub-Saharan Africa. The campaign is the start of monthly national immunization days during the low season for polio. It’s hoped that vaccinating children now--when the virus is at its weakest--will be the best way of stopping transmission.
Scientists are beginning to nail down the minimum age of the universe, with the latest estimate put at 12.5 billion years. Scientists can determine the age of the universe by fixing the age of the oldest stars in the Galaxy.
选项
A、By observing the oldest stars in the universe.
B、By studying the nearest stars that can be seen.
C、By fixing the age of the oldest stars in the Galaxy.
答案
C
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3110849.html
相关试题推荐
[originaltext]W:Mygosh,Patrick.Wherearewe?M:Jessica,I’mtakingyoumou
[originaltext]W:Mygosh,Patrick.Wherearewe?M:Jessica,I’mtakingyoumou
[originaltext]W:Mygosh,Patrick.Wherearewe?M:Jessica,I’mtakingyoumou
[originaltext]W:Mygosh,Patrick.Wherearewe?M:Jessica,I’mtakingyoumou
[originaltext]InformationAgeAsth
[originaltext]TheNecktieTheneckt
[originaltext]M:I’mAviArditti,andthisweekon"Wordmaster:alessonincom
[originaltext]M:I’mAviArditti,andthisweekon"Wordmaster:alessonincom
[originaltext]M:I’mAviArditti,andthisweekon"Wordmaster:alessonincom
[originaltext]M:Ismarriageagoodfinancialmoveforyou?Ontoday’smoney,m
随机试题
Readthisadviceaboutrespondingtoquestionsfromtheaudiencewhilegiving
BecauseAtlascoursesstarteveryMondayoftheyear,there’sboundtobeon
某书校样多次出现古职官名“提点刑狱”,但前后写法有“提点刑狱”“指点刑狱”“提典
根据集装箱结构的特点和适用货类的不同,可以把集装箱分为( )等。A.普通杂货集
错图中车辆前方左转的灯是红灯,所以不能左转弯。
消弧装置油箱漏油速度每滴时间快于5秒,且油位正常定性为一般缺陷。
变压器套管渗漏、油位异常和末屏放电的处理原则是()。(A)套管严重渗漏或者瓷套破
四川大地震在相当程度上修改或者说________了国际社会对中国的观感,那些在帐
17,5,24,38,28,()。 A.48B.20C.30D.36
社会环境调查的基本内容不包括( )。A.社会经济 B.文物与景观 C.人群
最新回复
(
0
)