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
All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds creatures and mank
All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds creatures and mank
admin
2018-09-25
37
问题
All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds creatures and mankind. Each year it provides men with two hundred million tons of grain and nearly ten million tons of wood, coal, oil, natural gas, and all other fuels are stored energy from the sun. Some was collected by this season’s plants as carbon compounds. Some was stored by plants and trees ages ago. Even waterpower derives from the sun. Water turned into vapor by the sun fails as rain. It courses down the mountains and is converted to electric power. Light transmits only the energy that comes from the sun’s outer layer, and much of this energy that is directed towards the earth never arrives. About nine tenths of it is absorbed by the atmosphere of the earth. In fact, the earth itself gets only one half millionth of the sun’s entire output of radiant energy.
Radiant energy is stored as carbon compounds by( ).
选项
A、plants
B、water
C、rock
D、creatures
答案
A
解析
事实细节题。文中第四句提到,太阳能作为碳的化合物储存在植物体内,所以选A。
转载请注明原文地址:https://kaotiyun.com/show/lR3O777K
0
成人本科学位英语
相关试题推荐
Wildpigsarefierceandcourageousfightersandmaychargewithlittleorno
Onesummerdaymyfathersentmetobuywireforourfarm.At16,Iliked【C1】______betterthandrivingourtruck,【C2】______this
Weknowwehavetoread"betweenthelines"togetthemostoutofanything.Markingupisalsoausefulpractice,【C1】______you
ThatcoldJanuarynight,IwasgrowingsickofmylifeinSanFrancisco.ThereIwas,walkinghomeatoneinthemorningaftera
Hiswifehastoworkhardathome,andperhapsoutsidethehome______.
Itisdifficulttoimaginewhatlifewouldbelikewithoutmemory.(79)Themeaningsofthousandsofeverydayperceptions,theba
Itisdifficulttoimaginewhatlifewouldbelikewithoutmemory.(79)Themeaningsofthousandsofeverydayperceptions,theba
Pleasekeepaneyeonmyluggage,andI’llbeback______.
His()oftheaeroplanewascorrectineverydetailandcouldreallyfly.
DefenseDepartmentanalystsworrythattheabilityoftheUnitedStatestowageaprolongedwarwouldbeseriouslyendangeredif
随机试题
A.淋巴细胞渗出为主的炎症B.纤维蛋白渗出为主的炎症C.浆液渗出为主的炎症D.单核-巨噬细胞渗出为主的炎症E.中性粒细胞渗出为主的炎症大叶性肺炎是
A.犬吠样咳嗽B.刺激性咳嗽C.干咳D.进食时咳嗽E.带金属调咳嗽下列疾病的咳嗽分别属于:男性,38岁。因胸闷、气急、咳嗽2周人院。检查发现前中纵隔巨大肿瘤,可能来自胸腺。分层片示气管明显受压
A.藻红蛋白B.四甲基异硫氰酸罗丹明C.四乙基罗丹明D.异硫氰酸荧光素E.亮绿呈现橘红色荧光的是
临床使用最广泛,固位、支持、稳定作用均较理想的卡环是游离端缺失,缺牙区牙槽嵴丰满,但末端基牙状况不理想时,应选用
建筑设计需要考虑的内容有()
关于预应力混凝土施工工艺,下列叙述正确的是()。
某项目总投资为2000万元,其中债务资金为500万元,项目运营期内年平均净利润为200万元,年平均息税为20万元,则该项目的总投资收益率为()。
建设工程未经竣工验收而发包人擅自使用后,发包方发现工程质量存在下列问题,其中应由承包方承担相应责任的是()。
下列不属于全国人民代表大会和全国人大常委会制定的税收法律的是()。
据报道,我国在基础研究到企业产品开发的过程中,有90%的科研成果死掉了。这是多么惊人、多么可怕的“死亡之谷”。长期以来,我们所缺的主要不是成果(当然,重大的高质量成果另当别论),但有一个致命伤:转化率低。据不完全统计,目前我国上百万件专利技术、科研成果处于
最新回复
(
0
)