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
At one time, scientists thought the space between Earth and Sun was a vacuum. But we now know that the sun fills it with gusts o
At one time, scientists thought the space between Earth and Sun was a vacuum. But we now know that the sun fills it with gusts o
admin
2013-06-02
54
问题
At one time, scientists thought the space between Earth and Sun was a vacuum. But we now know that the sun fills it with gusts of hot, electrically charged atomic【B1】______ called the solar wind. Sometimes this wind blows hard. When the Sun’s outer layer is very active, it【B2】______ nearly one-third of its gaseous matter outward at supersonic speeds.
The U.S. government’s oceans and atmosphere agency NOAA, has a Space Environment Center to monitor these【B3】______ . The center’s director, Ernest Hildner, says【B4】______ solar emissions are not dangerous to people on the ground, but can be a【B5】______ to airplane occupants and astronauts. They can also shut down satellites, power networks, communications, and other technical systems.
Scientists have long known that solar storms are generated internally by the sudden【B6】______ of magnetic energy rising to the surface. Like a tightly【B7】______ rubber band, the Sun’s magnetic fields can suddenly snap into a new shape. Researchers have tried to predict solar storms by【B8】______ on these magnetic patterns. But【B9】______ . But how are they linked to solar storms?
New satellite data have provided answers to U.S. government scientists and colleagues from the aerospace firm Lockheed Martin. They have revealed that【B10】______ . Lockheed Martin physicist Karel Schrijver says【B11】______ .
【B8】
选项
答案
focusing
解析
focus意为“集中、聚焦”。由空后的介词on可判断此处为动词,由于前面有by,因此此处应该为动词现在分词形式。
转载请注明原文地址:https://kaotiyun.com/show/TaB7777K
0
大学英语六级
相关试题推荐
A、Theyarequitedifferentinpaintingskills.B、Neitherofthemisgoodathouse-painting.C、Theyareequallygoodathouse-pai
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirworktheymustreadletters,reports,tradepublication
Peoplewithdisabilitiescomprisealargepartofthepopulation.Itis【C1】_____thatover35millionAmericanshavephysical,【C2
A、Hehastoomanydreams.B、Helikestosleep.C、Hedoesn’tputhisideasintopractice.D、Hedoesn’thavemanyideas.C语义推断题女士
Itisdecidedbythegovernmentthat______(建立纪念碑来纪念这位民族英雄)
TherebuildingoftheWorldTradeCenterisinmanywaysamemorialtothosewholosttheirlivesinthe2001September11attac
Thereisaphenomenainthepresent.Theaveragenumberofauthorsonscientificpapersisskyrocketing.Whatisthemainreaso
Growingup,Iearnedmybestmarksforplayingwellwithothers.Formyhusband,Ilivedinthreedifferentcountriesinfiveye
Tobesuccessfulinajobinterview,oneshoulddemonstratecertainpersonaland(36)______qualities.Thereisaneedtocreate
A、Theyweresilent.B、Theydidn’ttellacompletestory.C、Theyweretooexpensive.D、Theyweretooshort.A文中提到“In1927sound
随机试题
中度以上龋,银汞合金充填时需垫底,是因为银汞合金有
A、二丙酸倍氯米松B、可待因C、沙丁胺醇D、氨茶碱E、色甘酸钠具有强大的抗炎及免疫抑制作用的,用于哮喘发作的药物是()。
妇科门诊带教林护士向护生提问有关"双合诊"检查法的概念,正确的是
期货从业人员必须遵守()。
专利权可以作为经济法律关系的内容,但不可以作为经济法律关系的客体。()
完成某项工程,甲单独工作需要18小时,乙需要24小时,丙需要30小时。现按甲、乙、丙的顺序轮班工作,每人工作一小时换班。当工程完工时。乙总共干了()。
第三代移动通信技术3G是指支持高速数据传输的蜂窝移动通信技术。目前3G主要存在4种国际标准,其中______为中国自主研发的3G标准。
TheInternationalLaborOrganizationhasstudiedreportsonworkers’privacyinnineteenindustrialnations.Thestudyshowstha
DeterminingtheAgeofthePlanetsandtheUniverseP1:Asthesolarnebula,alargerotatingcloudofinterstellardustandgas
Traditionalplantbreedinginvolvescrossedvarietiesofthe【M1】______samespeciesinwaystheycouldcrossnaturally.Forexa
最新回复
(
0
)