首页
登录
职称英语
At one time, scientists thought the space between Earth and Sun was a vacuu
At one time, scientists thought the space between Earth and Sun was a vacuu
游客
2023-08-31
68
管理
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】______ . [br] 【B9】
选项
答案
this method is not very reliable in that electrical currents must also be present.
解析
这个方法不是很可靠,因为肯定也有电流的存在(干扰)。
转载请注明原文地址:https://tihaiku.com/zcyy/2974278.html
相关试题推荐
Culturalnormssocompletelysurroundpeople,sopermeatethoughtandaction
Culturalnormssocompletelysurroundpeople,sopermeatethoughtandaction
Culturalnormssocompletelysurroundpeople,sopermeatethoughtandaction
Culturalnormssocompletelysurroundpeople,sopermeatethoughtandaction
Foryearsthemedia,foodlabels,dietitians,andevenscientistswhoshould
Foryearsthemedia,foodlabels,dietitians,andevenscientistswhoshould
Foryearsthemedia,foodlabels,dietitians,andevenscientistswhoshould
[originaltext]BetweentenandmidnighttheUnitedStatesispoliticallylea
[originaltext]BetweentenandmidnighttheUnitedStatesispoliticallylea
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcen
随机试题
WhydidthespeakeroriginallygotoTanglewood?[br][originaltext](15)Whe
Alanguageisasignalingsystemwhichoperateswithsymbolicvocalsounds,
Itisquitecommonforacompanytorecruitnewemployees.Whenacompanyse
通过火灾报警控制器总线手动控制盘手动启动气体灭火,火灾报警控制器需要处于哪种状态
封闭式母线的主要缺点是:由于环流和涡流的存在,外壳将产生损耗;有色金属消耗量大;
有关产褥期内分泌系统变化说法,不正确的是:()A.分娩后,雌激素和孕
游览时的文明引导包括( )等内容。A.不得将文明旅游的内容融合在讲解词中,要严
可以进行邀请招标的工程包括( )。 A、项目技术复杂或有特殊要求,只有少量
关于行政处罚的适用的说法,正确的有( )。A.对当事人的同一个违法行为,不得给
I公司在1998年宣布进入IT服务领域之前,已经是全球最具规模的个人及商用PC生
最新回复
(
0
)