首页
登录
职称英语
What do we learn about the sea in the modem technological world? [br] [original
What do we learn about the sea in the modem technological world? [br] [original
游客
2024-02-25
24
管理
问题
What do we learn about the sea in the modem technological world? [br]
Man is a land animal,but he is also closely tied to the sea.Throughout history the sea has served the needs of man.The sea has provided man with food and a convenient way to travel to many parts of the world. Toady,experts believe that nearly two-thirds of the world’s population live within eighty kilometers of the seacoast.In the modem technological world,the sea offers many resources to help mankind survive.Resources on land are beginning to grow less.The sea,however,still offers hope to supply many of man’s needs in the future.The riches of the sea yet to be developed by man’s technology are impressive.Oil and gas explorations have existed for nearly thirty years.Valuable amounts of minerals such as iron,copper exist on the ocean floor.Besides oil and gas,the seas may offer new sources of energy.For example,warm temperature of the ocean can be used as the steam in a steamship.Sea may also offer a source of energy as electricity for mankind.Technology is enabling man to explore even deeper under the sea.It is obvious that the technology to harvest the sea continues to improve.By the 2050,experts believe that the problems to explore the food, minerals and energy resources of the sea will have been largely solved.
选项
A、Iron and copper.
B、Gold and copper.
C、Nickel and bronze.
D、Iron and bronze.
答案
A
解析
短文提到海床上有很多有价值的矿物质,such as后又以铁、铜作为例子,故选A。
转载请注明原文地址:https://tihaiku.com/zcyy/3482196.html
相关试题推荐
[originaltext]Thetwenty-thirdOlympicGameswereheldinLosAngelesand,
[originaltext]Thetwenty-thirdOlympicGameswereheldinLosAngelesand,
[originaltext]Quiet,please.MayIhaveallofyourattention?Weneedtog
[originaltext]W:I’mtiredofwatchingtelevision.Let’sgotothemoviestonig
[originaltext]W:Didyouhaveagoodtimelastweekend?M:Yes,Idid.Ivisite
[originaltext]W:Didyouhaveagoodtimelastweekend?M:Yes,Idid.Ivisite
[originaltext]W:Didyouhaveagoodtimelastweekend?M:Yes,Idid.Ivisite
[originaltext]M:That’sanawfullyheavysweaterforadayliketoday.W:Well,
[originaltext]M:That’sanawfullyheavysweaterforadayliketoday.W:Well,
[originaltext]M:That’sanawfullyheavysweaterforadayliketoday.W:Well,
随机试题
[originaltext]"Couldyouhearme?"StephenHawkingaskedinhisiconiccomp
DeafnessLatestSituationAbout16-mill
某药用植物具如下特征:草本,复叶,二体雄蕊,心皮1,果实为荚果,该植物可能属于A
根据行政、事业单位财务规则的规定,专用设备作为固定资产的单位价值标准是()。A
双组分路面标线涂料干膜厚度一般控制在()。A.0.4~2.5mm之间 B.0.
下列不属于基金销售机构人员从事的工作范围的是( )。A.分析基金走势 B.
下列哪种药是抗躁狂药A:地西泮 B:丙米嗪 C:氟西汀 D:丁螺环酮 E
图示结构中,各构件的自重不计,已知:力偶矩的大小m=60kN·m,其转向为顺时针
以下属于劳资冲突表现形式的有( )。A.请愿上访 B.示威、集会 C.怠工
目前采取的用乙烯为原料,通过氧化或氧氯化制乙醛,不需用汞做催化剂,彻底消除了汞害
最新回复
(
0
)