首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
According to the passage, what do people often think about astronomers?
According to the passage, what do people often think about astronomers?
admin
2013-07-19
43
问题
According to the passage, what do people often think about astronomers?
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、The cost of equipment needed is reduced.
B、Fewer data need to be analyzed.
C、The images can be studied by different astronomers.
D、The natural colors of astronomical objects can be captured.
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/cKQK777K
0
专业英语四级
相关试题推荐
Whatistheman’sproblem?
ItiscommonlybelievedintheUnitedStatesthatschooliswherepeoplegotogetaneducation.Nevertheless,ithasbeensaid
Today,theworldwidewebcanbeusedbothtosearchinformationandtomakeit【C1】______toothers.Information【C2】______onwebp
Whatistheconversationmainlyabout?
InAmerica,olderpeoplerarelylivewiththeiradultchildren.Butinmanyothercultureschildrenareexpectedtocare【C1】____
ArecentsurveyhasfoundthatsomeresidentsinbigcitiesputhighervalueonChinesetraditionalfestivals,amidarisingpop
InformationtechnologyisexpectedtohaveimpactonallthefollowingEXCEPTAttheendofthepassage,theauthorseemstoem
Whowastherecentsurveycarriedoutby?
Warning:Holdingacellphoneagainstyourearorstoringitinyourpocketmaybehazardoustoyourhealth.Thisparaphrase
Warning:Holdingacellphoneagainstyourearorstoringitinyourpocketmaybehazardoustoyourhealth.Thisparaphrase
随机试题
学生的“向师性”和模仿性的心理特征决定了教师的劳动具有()
治疗中风中经络风阳上扰证,首选的方剂是
企业现金清查中,发现库存现金较账面余额短缺1000元,在未查明原因之前,应借记的会计科目是()。
第三版巴塞尔资本协议要求杠杆率不能低于()。
关于注册会计师接受委托前的沟通,下列说法中正确的是()。
在缺乏某种______的情况下,靠______来学习,属于典型的机械学习。
A、 B、 C、 D、 D
"Whereistheuniversity?"isaquestionmanyvisitorstoCambridgeask,butnoonecangivethemaclearanswerforthereisno
Increasingly,U.S.companiesarebecomingrelationship-focused.Weseektobecustomer-driven.Wewanttopartnerwithsupplier
A、Itbecomesbigger.B、Itbecomesmoreexpensive.C、Itbecomescheaper.D、Itbecomesmuchsafer.CHowdoessiliconchipsbecome
最新回复
(
0
)