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
2023-11-12
40
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. (16) The plate is positioned so that the image received by the telescope is recorded on it. (15)Then the image can be developed 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, (17) long 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、To spend less time at their telescopes.
B、To overcome the problem of weak light.
C、To take more photographs.
D、To photograph astronomical objects without using a telescope.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3181454.html
相关试题推荐
Accordingtotheman,whichofthefollowingisNOTthereasonthepartyissucc
Accordingtotheman,whichofthefollowingisNOTthereasonthepartyissucc
Accordingtotheman,whichofthefollowingisNOTthereasonthepartyissucc
HowmanypeoplediedintheviolentearthquakethatshookLosAngelesin1994?[
HowmanypeoplediedintheviolentearthquakethatshookLosAngelesin1994?[
Howmanypeoplediedduringthecollision?[br][originaltext]Fivepeopledi
Howmanypeoplediedduringthecollision?[originaltext]Fivepeopledied,tw
Whatistheconcernofordinarypeopleaboutthe"GreenhouseEffect"?[br][ori
Whatistheconcernofordinarypeopleaboutthe"GreenhouseEffect"?[br][ori
Whatisthetopicofthepassage?[br][originaltext]Foodthathascomein
随机试题
A—CBO(ChiefBusinessOfficer)B—CDO(ChiefDevelopmentOfficer)
[originaltext]W:Hi,ProfessorHiggins.M:Hi,Julia.W:Wouldyoubeabletoh
甲得知某单位财务室保险柜中有10万元工资款将于次日发放,遂携工具深夜潜入财务室撬
下列对保险公司及其工作人员阻碍投保人履行如实告知义务的处罚不正确的是()。A:构
某套商品住宅套内使用面积64m2,套内墙体面积9m2,半封闭阳台水平投影面积6m
Thechangeinthatvillagewasmiraculou
共用题干 患儿,8个月,肺炎。现突然烦躁不安、发绀,且进行性加重。体检:呼吸6
阅读下面的材料,根据要求写作。 师德是教师的立师之本,是教师事业成功的保障。
C类神经症剖面图的特点是量表1、2、3的T分均高于60分,并且( )。A.量表
由于某类产品进口数量激增,导致国内相关企业受到严重损害。根据对外贸易法律制度的规
最新回复
(
0
)