首页
登录
职称英语
[originaltext] The earth’s oceans are colossal, so much bigger than the land
[originaltext] The earth’s oceans are colossal, so much bigger than the land
游客
2023-09-03
48
管理
问题
The earth’s oceans are colossal, so much bigger than the land area that they cover 70% of the surface of the earth. They give us food and materials and a major constituent in the formation of our weather. The extremes of temperature on the earth would be much greater, and many places would be too hot or too cold for humans without the oceans to act as the earth’s thermostat.
As our supply of fresh water becomes more and more scarce, we have naturally looked to the oceans, the greatest source of water on earth. But there is so much salt in sea water that it is not fit for human consumption. Scientists have been trying to find ways to turn this salt water into fresh water. Machines for the conversion of water are already at work in certain parts of the world, but their cost is still exorbitant. Science will have to find much cheaper ways to do the job.
Possibilities for food abound in the ocean. In addition to the hundreds of varieties of fish, some kinds of seaweed can be eaten. It is nutritious enough, containing many proteins, vitamins, and minerals that humans need for survival, but so far no one has been able to figure out how to disguise its awful taste.
选项
A、70% of the land surface.
B、Food.
C、Drinking water directly.
D、Mineral water.
答案
B
解析
Which of the following things can the ocean supply us with?
转载请注明原文地址:https://tihaiku.com/zcyy/2982456.html
相关试题推荐
[originaltext]RussellFazio,anOhioStatepsychologyprofessor,whohasst
[originaltext]RussellFazio,anOhioStatepsychologyprofessor,whohasst
[originaltext]BernardJacksonisafreemantoday,buthehasmanybitterm
[originaltext]BernardJacksonisafreemantoday,buthehasmanybitterm
[originaltext]BernardJacksonisafreemantoday,buthehasmanybitterm
[originaltext]W:Thisweek’sprogramUpYourStreettakesyoutoHarrogate,as
[originaltext]W:DidyouhearthatAnnaneedstostayinbedfor4weeks?M:Ye
[originaltext]W:DidyouhearthatAnnaneedstostayinbedfor4weeks?M:Ye
[originaltext]W:DidyouhearthatAnnaneedstostayinbedfor4weeks?M:Ye
[originaltext]Blamingcreditcardsforyoungadults’moneyabuseispopular
随机试题
Sciencealwayspaysattentiontopracticality.Itinvolvestheconscientiousque
Theamazingsuccessofhumansasaspeciesistheresultoftheevolutionary
由JK触发器组成的应用电器如图所示,设触发器的初值都为0,经分析可知是一个:
A.16~19岁 B.3周~7个月 C.11~13岁 D.7~10岁 E
下列各项中,不属于资产基本特征的是( )。A.由于过去的交易或者事项形成的 B
以下属于技术分析的基本假设的是( ) Ⅰ.市场行为涵盖一切信息 Ⅱ.证券价
某工厂为企业改制进行资产重组,委托估价机构对其以划拨取得的土地上建成的两幢房屋进
一般来说,行业内竞争程度在行业发展阶段后期,在经济周期达到高点时较大。()
对于采用投资补助、贷款贴息等方式的政府投资项目,政府投资主管部门从投资决策角度只
可不设翼墙的桥台是( )。A.U形桥台 B.耳墙式桥台 C.八字式桥台
最新回复
(
0
)