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
58
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://kaotiyun.com/show/JdN7777K
0
大学英语四级
相关试题推荐
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
以下选项不属于萨迪《蔷薇园》第一卷的艺术特色的是()
你最好带件毛衣,以防天气变冷。
抗原抗体反应时,抗体过剩称为
经夏某申请,某县社保局作出认定,夏某晚上下班途中驾驶摩托车与行人发生交通事故受重伤,属于工伤。夏某供职的公司认为其发生交通事故系醉酒所致,向法院起诉要求撤销认定。某县社保局向法院提交了公安局交警大队交通事故认定书、夏某住院的病案和夏某同事孙某的证言。下列说
咨询公司编制的技术建议书中的工程咨询经验应重点介绍()。
下列关于资产可收回金额的表述中,正确的有()。
年老的游客好思古怀旧,对游览名胜古迹、会见亲且月老友有较大的兴趣,他们希望得到尊重,希望导游人员多与他们交谈。()
下列说法错误的是:
杨柳是我国古代诗词里面较为常见的意象,往往蕴涵离别之情,下列名句中不是表达送别意象的是()。
下列控制格式输入/输出的操作符中,能够设置浮点数精度的是()。
最新回复
(
0
)