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
34
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://jikaoti.com/ti/xUXFFFFM
0
大学英语六级
相关试题推荐
A、Themanwastheonlysurvivorofanaircrash.B、Peopleonboardwerefrightenedandtriedtoescape.C、Themanhasalwaysbee
Mostvolcanoesarequiet.Theyrest【B1】_____forhundredsofyears.Noonepaysmuchattentiontothem.MountSt.Helenswason
Theratiobetweenpaymentsintoandoutofacountryisknownasthecountry’sbalanceofpayments.Besidesthevalueofimports
Chinahasoutlinedanewapproachtoforeigninvestment,withplannerssayingtheywillnowfocuslessonattractinglargeamoun
A、EarlynewspapersinEngland.B、Theearlyhistoryofmagazines.C、ThelifeofDanielDefoe.D、Differencesbetweennewspapersan
Entertheinformationage.Informationistherawmaterialformanyofthebusinessactivities【C1】______thisnewera,justas
Manyprivateinstitutionsofhighereducationaroundthecountryareindanger.Notallwillbesaved,andperhapsnotall【B1】__
A、Waterfrominlandseas.B、Rainwater.C、Sewerage.D、Waterfrommountainstreams.D细节推断题从对话中可以得知男士建议女士在远足旅行时带上这种净水器,由此可以判断出它最适用
Fromthefirst,paragraphwecanlearnthatthecampuslifehasbecome______.Theauthorbelievesthatweshouldpay______.
Whydidofficialsappearmoreworriedabouttheterroralertthistime?Whichofthefollowingistrueaccordingtoparagraph2
随机试题
A、A2增强B、A2减弱C、P2增强D、P2减弱E、S1减弱低血压状态()
某猪群中保育阶段猪出现关节肿大,运动障碍,部分猪具有神经症状和呼吸道症状,腹式呼吸。急性死亡猪败血症。发病率在30%以上。分离剐猪嗜血杆菌应该选用下列培养基
水库渔业资源调查中,鱼类调查必做的调查内容包括()。
根据我国《社会保险法》的规定,失业人员停止领取失业保险金和停止享受其他失业保险待遇的情形有()。
杜某死亡时,遗产由其母陈某、其妻李某和两个孩子杜甲、杜乙继承,当时李某已怀有身孕,为胎儿保留继承份额3万元。胎儿出生后1天后不幸夭折,这3万元应如何处理?()
《吕氏春秋·察今》记述一则寓言,说有个楚国人,坐船渡河时不慎把剑掉入河中,他在船上用刀刻下记号,说:“这是我的剑掉下去的地方。”当船停下后,他沿着记号跳入河中,但寻遍无获。其错误在于()。
()质性研究是一个演化的过程,随着实际情况的变化,研究者要不断调整自己的研究设计、收集和分析资料的方法、构建理论的方式。
能够接受Print方法的对象是()。(1)窗体(2)标签(3)标题栏(4)立即窗口(5)图片框(6)状态栏(7)打印机(8)代码窗口
Bahrainioppositionactivistssayateenageboy
SavingfortheFuture.Purposeofsaving1.Womensavea.fortheirchildren’s【T1】________
最新回复
(
0
)