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
2024-05-14
6
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/3598722.html
相关试题推荐
[originaltext]Objectsthatarevibratingmakesounds.Rhythmicsoundvibrat
[originaltext]Objectsthatarevibratingmakesounds.Rhythmicsoundvibrat
[originaltext]Thereisnodoubtthatadults,andevenhighlyeducatedadult
[originaltext]W:Hello,Dr.Christianson.M:Hello,Cathy,whatcanIdoforyo
[originaltext]W:Thankheavens!You’rebacksafeandsound.Everyonewasworrie
[originaltext]W:Thankheavens!You’rebacksafeandsound.Everyonewasworrie
[originaltext]W:Thankheavens!You’rebacksafeandsound.Everyonewasworrie
[originaltext]W:Thankheavens!You’rebacksafeandsound.Everyonewasworrie
[originaltext]W:Thankheavens!You’rebacksafeandsound.Everyonewasworrie
[originaltext]W:Thankheavens!You’rebacksafeandsound.Everyonewasworrie
随机试题
[originaltext]M:NowI’lltakesomequestions.W:Well,Mr.Brown,Ihaveaque
可作为治疗眼前节炎症的首选药物是()A:1%后马托品 B:1%阿托品 C:
阅读下列材料和具体要求,完成后面的问题。 《沁园春·长沙》是人教版高中语文必
半夏的功效是A.燥湿化痰,理气调中 B.燥湿化痰,散结消肿 C.燥湿化痰,通
慢性胃炎的确诊依据是()。A.胃液分析 B.X线钡餐 C.胃镜检查 D.
四、填空题:(每题1分,共10分)1、任何人发现有违反本规程的情况,应_____
某机械设备股份有限公司2013年主要财务数据见下表(单位:亿元): 项目
一件工作甲、乙合做30小时可以完成,共同做了6小时后甲因事离开,由乙继续做了40
做好工程施工记录、保存各种信息档案,参与处理索赔事宜,属于施工阶段投资控制的(
根据规范要求,下述哪种物体可以做接地极?()A.建筑物钢筋混凝土基础桩 B.
最新回复
(
0
)