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
39
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://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
PassageTwo[br]WhatisthemainargumentinPara.10?Millennialscanraise
[originaltext]W:WillyoupleasereturnthesebookstoMatthewwhenyouseehim
Itseemsoddthatinaknowledgeeconomywhereintellectualandknowledgewo
1"Itisalwaysconsolingtothinkofsuicide,"theGermanphilosopherFr
[originaltext]Therearesomanydifferentkindsofanimalsallaroundthew
目前上海证券交易所、深圳交易所均规定,权证自上市之日起存续时间至少为()。A.1
高分子溶液多采用的制备方法A.溶解法 B.回流法 C.稀释法 D.蒸馏法
2020年11月,“奋斗者号”研制及海试的成功,体现了我国在海洋高技术物域的综合
1991-48.证见自汗或盗汗,汗液黏或衣服黄染,小便色黄,舌苔薄黄,脉象沉滑
下列关于立面图中的双层钢筋表示中,正确的是()。
最新回复
(
0
)