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
A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in【C1】______at the Sun’s ver
A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in【C1】______at the Sun’s ver
admin
2010-07-24
28
问题
A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in【C1】______at the Sun’s very center. It is here that is to be found the【C2】______of the energy that the Sun pours out into space is【C3】______The energy takes the form of light and heat. This energy is【C4】______at the center of the Sun as billions【C5】______billions of nuclei of hydrogen atoms【C6】______with each other and fuse together to form nuclei of helium, and in doing so,【C7】______some of the energy that is【C8】______in the nuclei of atoms. The【C9】______of light and heat of the Sun【C10】______that some 600 million tons of hydrogen be【C11】______into helium(氦)in the Sun every second. This the Sun has been doing for several thousands of millions of years. The nuclear energy is released at the Sun’s center as high-energy gamma radiation,【C12】______of electromagnetic radiation like light and radio waves, only of very much shorter【C13】______. This gamma radiation is absorbed by atoms inside the Sun to be【C14】______at slightly longer wavelengths. This radiation, in its【C15】______is absorbed and reemitted. As the energy filters through the【C16】______of the solar interior, it passes through the X-ray part of the spectrum【C17】______becoming light. At this stage, it has reached what we call the solar surface, and can escape into space without being absorbed further by solar atoms. A very small【C18】______of the Sun’s light and heat is emitted in such directions that【C19】______passing unhindered through interplanetary space, it【C20】______the Earth.
【C16】
选项
A、layouts
B、layers
C、floors
D、storeys
答案
B
解析
名词辨义题。filter through意为“渗透”。该句描述的是“能量从太阳内部怎样地渗透出来”,可推测是指层层渗透,即through the layers of the solar interior,故选择B项。layout意为“布局,安排”,词形相近,词义不同;floor。和storey都是指“楼层”,不准确,可排除。
转载请注明原文地址:https://jikaoti.com/ti/nsEFFFFM
0
大学英语四级
相关试题推荐
A、BecausetheEarthisheavilypolluted.B、Becausenaturecannotrecycleitsresources.C、Becausetherearemoreandmorepeople
Teachersneedtobeawareoftheemotional,intellectual,andphysicalchangesthatyoungadultsexperience.Andtheyalsoneed
Teachersneedtobeawareoftheemotional,intellectual,andphysicalchangesthatyoungadultsexperience.Andtheyalsoneed
Teachersneedtobeawareoftheemotional,intellectual,andphysicalchangesthatyoungadultsexperience.Andtheyalsoneed
Teachersneedtobeawareoftheemotional,intellectual,andphysicalchangesthatyoungadultsexperience.Andtheyalsoneed
Teachersneedtobeawareoftheemotional,intellectual,andphysicalchangesthatyoungadultsexperience.Andtheyalsoneed
Teachersneedtobeawareoftheemotional,intellectual,andphysicalchangesthatyoungadultsexperience.Andtheyalsoneed
随机试题
不依据现成的描述而独立创造新形象的过程是_______。
下列选项中标志着多党合作制作为我国的一种政党制度正式走向制度化的是()
【背景资料】某大型综合商场工程,建筑面积49500m2,地下1层,地上3层,现浇钢筋混凝土框架结构。建安投资为22000.00万元,采用工程量清单计价模式,报价执行《建设工程工程量清单计价规范》GB50500—2013,工期自2013年8月1日
物业服务企业信用档案的记录内容主要包括()。
在教学中如何体现“从物理到社会”的课程理念?并以初中物理“摩擦力”一课为例说明。
某市政府所属A行政机关作出行政处罚决定后被撤销,其职能由市政府所属B行政机关继续行使,受到行政处罚的公民不服,准备提起行政复议,此时他应以()为行政复议被申请人。
某市新华街派出所推动“1+3+N”专群联动工作机制,即以新华商圈“大党委”为“1”,通过联合党建活动,联动公安、综合执法、司法“3”部门,深度整合辖区企事业单位、小区物业公司等“N”种社会资源。此外,依据不同区域治安特点,先后形成了新华商圈警企反恐“四联三
现在有一种现象,人才分布南多北少,东多西少,城市多乡镇少,你如何看待?
—Youwillhearfivespeakerstalkingaboutbusinesstrips.—Foreachrecording,choosethereasonthespeakergivesforthetr
Inmostcases,thedoctorisunabletoavoidsomedegreeofemotionalinvolvementwiththesickindividualwhohascometohimf
最新回复
(
0
)