首页
登录
职称英语
According to the passage, what do people often think about astronomers? [br] [o
According to the passage, what do people often think about astronomers? [br] [o
游客
2023-11-02
62
管理
问题
According to the passage, what do people often think about astronomers? [br]
Most people think of astronomers as people who spend their time in cold observatories peering through telescopes every night. In fact, a typical astronomer spends most of his/her time analyzing data and may only be at the telescope for a few weeks of the year. Some astronomers work on purely theoretical problems and never use a telescope at all. You might not know how rarely images are viewed directly through telescopes. The most common way to observe the skies is to photograph them. The process is very simple. First a photographic plate is coated with a light-sensitive material. The plate is positioned so that the image received by the telescope is recorded on it. Then the image can be developed, enlarged and published so that many people can study it. Because most astronomical objects are very remote, the light we receive from them is rather feeble. But by using a telescope as a camera, 1ong time exposures can be made. In this way, objects that are a hundred times too faint to be seen can be photographed by just looking through a telescope.
选项
A、Decreasing the time it takes to photograph objects.
B、Avoiding using a telescope.
C、Sharpening the color of what they observe.
D、Obtaining images of distant objects.
答案
D
解析
细节归纳题。文中说照相平盘可以记录下由望远镜捕捉到的物体,然后把其拍成照片,故D项意思正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3150579.html
相关试题推荐
Highereducationisn’tforeveryone,andpeoplehaveavarietyofpathstoc
Highereducationisn’tforeveryone,andpeoplehaveavarietyofpathstoc
Highereducationisn’tforeveryone,andpeoplehaveavarietyofpathstoc
Highereducationisn’tforeveryone,andpeoplehaveavarietyofpathstoc
Highereducationisn’tforeveryone,andpeoplehaveavarietyofpathstoc
HowmanypeoplediedoneregionaloneaftercycloneIvan?[br][originaltext]
HowmanypeoplediedoneregionaloneaftercycloneIvan?[originaltext]In2
AccordingtothisPassage,theumbrellawasprobablyfirstinvented[br][origi
AccordingtothisPassage,theumbrellawasprobablyfirstinvented[originaltex
Accordingtothereport,alltheglamourofHollywoodis[br][originaltext]
随机试题
[originaltext]W:Howlongwillittakeyoutofixmywatch?M:I’llcallyouwh
直接影响人的活动效率,使活动得以顺利进行的个性心理特征称为()A.人格 B.
根据《GB/T14394—2008计算机软件可靠性和可维护性管理》,有关下列术
气象检测器立柱竖直度偏差要求小于()。A.1mm/m B.2mm/m C.3
小儿癫痫发作应与下列疾病相鉴别 A.习惯性阴部擦腿 B.晕厥 C.扉气发作
支气管哮喘分期叙述不正确的是A.慢性持续期是指每周均不同频度和(或)不同程度地出
图示结构受一对等值、反向、共线的力作用,自重不计,铰支座A的反力FA的作用线应该
视觉中枢单个细胞的感受野与外侧膝状体单个细胞的感受野相比,两者的关系是A.前者大
法律主体一定是会计主体,但会计主体不一定是法律主体。()
项目监理机构应审查施工单位报审的专项施工方案,符合要求的,应由总监理工程师签认后
最新回复
(
0
)