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
It was not "the comet of the century" experts predicted it might be. However, Kohoutek has pro- vided a bonanza of scientifi
It was not "the comet of the century" experts predicted it might be. However, Kohoutek has pro- vided a bonanza of scientifi
admin
2010-06-30
57
问题
It was not "the comet of the century" experts predicted it might be. However, Kohoutek has pro- vided a bonanza of scientific information. It was first spotted 370 million miles from Earth, by an astronomer who was searching the sky for asteroids, and after whom the comet was named. Scientists who tracked Kohoutek the ten months before it passed the Earth predicted the comet would be a brilliant spectacle. But Kohoutek fell short of these predictions, disappointing millions of amateur sky watchers, when it proved too pale to be seen with the unaided eye. Researchers were very happy nonetheless With the new information they were able to glean from their investigation of the comet. Perhaps the most significant discovery was the identification of two important chemical compounds — methyl cyanide and hydrogen cyanide — never before seen in comets, but found it the far reaches of interstellar space. This discovery revealed new clues about the origin of comets. Most astronomers agree that comets are primordial remnants from the formation of the solar system, but whether they were born between Jupiter and Neptune or much farther out toward interstellar space has been the subject of :much debate. If compounds no more complex than ammonia and methane, key components of Jupiter, were seen in comets, it would suggest that comets form within the planetary orbits. But more complex compounds, such as the methyl cyanide found in Kohoutek, point to formation far beyond the planets; there the deep freeze of space has kept them unchanged.
In what respect was Kohoutek a disappointment?
选项
A、It could be seen only through special equipment.
B、It did not approach the Earth.
C、It did not provide valuable scientific information.
D、It was moving too rapidly for scientists to photograph.
答案
A
解析
文章里说到,预测结果是慧星的到来会是“brilliant spectacle”光耀夺目的壮观,而实际上too pale to be seen with the unaided eye。故应选A。
转载请注明原文地址:https://kaotiyun.com/show/y9Jd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Allinternationalchainschoolsteachmanydifferentlanguages.
Payandproductivity,itisgenerallyassumed,shouldberelated.Buttherelationshipseemstoweaken【C1】______peoplegetolder
ThefollowingisaninterviewwithEmmaRichards,oneofBritain’smostsuccessfulsailorsandtheyoungestpersontocompletet
Ontheheelsofitsrecentdecisiontocriminalizeconsumerswhoripsongsfromalbumstheyhavepurchasedtotheircomputers(or
Atthedawnofthe20thcentury,suburbiawasadreaminspiredbyrevulsiontothepovertyandcrowdingofthecities.Inthevi
AnswerQuestions71to80byreferringtothebriefsonfourfamouscastlesinWales,Britainonthefollowingpage.Answereach
Theaveragepersonseestensofthousandsofimagesaday—imagesontelevision,innewspapersandmagazines,andonthesidesof
Couldthebadolddaysofeconomicdeclinebeabouttoreturn?SinceOPECagreedtosupply-cutsinMarch,thepriceofcrudeoil
Inpopulardiscussionsofemissions-rightstradingsystems,itiscommontomistakethesmokestacksforthetrees.Forexample,
WhatisthemainpartoftheGoldenGateBridge?
随机试题
Mother______usstorieswhenwewereyoung.
循证医学的证据分级A、一级证据B、二级证据C、三级证据D、四级证据E、五级证据无对照的系列病例观察结果
在双缝干涉实验中,双缝间距为0.5mm,被一波长为500nm的单色光垂直照射,在缝后100cm处的屏幕上测得的干涉条纹间距为( )mm。
经纬仪测定两点间的水平距离,其相对误差为()。
屋面防水层用细石混凝土作保护层时,细石混凝土应留设分格缝,其纵横间距一般最大为()m。
银行资产结构主要指的是各()占总资产的比重。
关于爱岗敬业的说法中,你认为正确的是()。
下列关于队列的叙述正确的是
TheflagwhichisacombinationofBritain’sthreepartsisknownas______.
YouCanDoMorethanClicking"Like"Forthispart,youareallowed30minutestowriteashortessay.Youshouldstartyour
最新回复
(
0
)