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
58
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、Its scarce proteins.
B、Its terrible taste.
C、Its many vitamins.
D、The difficulty of finding it.
答案
B
解析
What is one of the drawbacks of sea weed as food?
转载请注明原文地址:https://tihaiku.com/zcyy/3598724.html
相关试题推荐
[originaltext](32)Howmenfirstlearnttoinventwordsisunknown,inoth
[originaltext](32)Howmenfirstlearnttoinventwordsisunknown,inoth
[originaltext]Afteragenerationofno-faultdivorceinAmerica,law-makers
[originaltext]Afteragenerationofno-faultdivorceinAmerica,law-makers
[originaltext]M:Pardonme,areyouwaitinginlineforclassregistration?W:
[originaltext]M:Pardonme,areyouwaitinginlineforclassregistration?W:
[originaltext]M:Pardonme,areyouwaitinginlineforclassregistration?W:
[originaltext]M:Sorry,IseemtohaveleftmystudentIDcardathome.W:Doy
[originaltext]M:Sorry,IseemtohaveleftmystudentIDcardathome.W:Doy
[originaltext]M:Sorry,IseemtohaveleftmystudentIDcardathome.W:Doy
随机试题
[originaltext]W:Thankheavens!You’rebacksafeandsound.Everyonewasworrie
eBay[A]eBayisaglobalphenomenon—theworld’slargestgaragesale,onl
以下关于性能测试的叙述中,不正确的是( )A.性能测试是在真实环境下检查系统服
下列情况下不是肾盂造瘘术的适应证的是A.解除尿路梗阻所致的肾盂肾盏扩张 B.输
巨额赎回风险是( )所特有的一种风险。A.封闭式基金 B.开放式基金 C.
分离三萜皂苷常不使用的色谱分离方法是A.硅胶分配色谱B.大孔交换树脂法C.离子交
苏霍姆林斯基说:“一个好老师意味着什么首先意味着他是这样一个人,他热爱孩子,感到
八股取士始于()。 A.秦朝B.宋朝 C.元朝D.明朝
个人住房贷款采用抵押担保方式的,抵押的财产必须符合《担保法》的法定条件,借款人以
(2016年真题)期货合约各项条款的设计对期货交易有关各方的利益是至关重要的,但
最新回复
(
0
)