首页
登录
职称英语
[originaltext] Most people think of astronomers as people who spend their ti
[originaltext] Most people think of astronomers as people who spend their ti
游客
2024-03-02
37
管理
问题
Most people think of astronomers as people who spend their time in cold observatories peering through telescope every night. In fact, a typical, astronomer spends most of his or her time analyzing data and may only be at the telescope a few weeks of the year. Some astronomers work on purely theoretical problems and never use a telescope at all. You night 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 lightsensitive material. The plate is positioned so that the image received by the telescope is recorded on it. Then, the image cam he 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, long time exposures can be made. In this way objects can be photographed that are a hundred times tm faint to be seen by just looking through a telescope.
选项
A、The natural colors of astronomical objects can be captured.
B、The cost of equipment needed is reduced.
C、Fewer data need to be analyzed.
D、The images can be studied by different astronomers.
答案
D
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3499120.html
相关试题推荐
[originaltext]Well,Imanageasmallbranchofalargesuper-market,andwe
[originaltext]Well,Imanageasmallbranchofalargesuper-market,andwe
[originaltext]W:WhatisthemostpopularcomicpresentlyinJapan?Whydoyou
[originaltext]W:Helloeverybody.We’resittingjustoutsideEmmaVilleinNew
[originaltext]W:Helloeverybody.We’resittingjustoutsideEmmaVilleinNew
Thetypeofdaydreamspeoplehave,whethertheyarepleasantandhopefulor
【B1】[br]【B9】[originaltext]It’snevertooearlytosaveyourskin—oryour
【B1】[br]【B8】[originaltext]It’snevertooearlytosaveyourskin—oryour
【B1】[br]【B7】[originaltext]It’snevertooearlytosaveyourskin—oryour
【B1】[br]【B6】[originaltext]It’snevertooearlytosaveyourskin—oryour
随机试题
此外,即便在市中心某些地方,也没有将自行车道及机动车道分隔开的清晰标识。Moreover,eveninsomedowntownareas,there
Machinesthatusehydraulicpressureincludingelevators,dentistchairs,andau
Hefeelsithisdutytohelpothers.Theitalicizedphraseis______.A、theobject
[originaltext]W:Whydidn’tyouhaveyourgeologyclasstoday?M:Onlythreeou
If____________(我在学校的时候学习努力些),Iwouldbehavingabetterjobnow.Ihadworked
A.25.OkN·m B.30.OkN·m C.37.5kN·m D.50
在WindowsXP文件系统中,()支持文件加密。A.FAT16 B.NT
关于霍乱的叙述,下列正确的是A.传播途径主要是通过呼吸道感染B.只需少量细菌(1
下列关于网上银行特征的说法,错误的是()。 A.微笑服务态度热情B.严密的
工程保险被保险人可能涉及的经济利害关系人不包括()。A.保险公司 B.业主
最新回复
(
0
)