首页
登录
职称英语
[originaltext] The diamond is considered the most famous, elegant and valuab
[originaltext] The diamond is considered the most famous, elegant and valuab
游客
2024-05-08
60
管理
问题
The diamond is considered the most famous, elegant and valuable jewel in the world. It is the hardest substance found in nature. Its hardness and high dispersion of light make it useful for industrial applications and jewelry.
Diamonds were made as a result of great volcanic heat and pressure. A volcano is a mountain with a hole in the top. When a volcano is very active it sometimes explodes and causes great damage.
Diamonds were pushed towards the surface of the earth-millions of years ago-by a number of great volcanic explosions. It is in the narrow volcanic pipes that diamonds are found. They are also found among the sand and stones of certain riverbeds, and in a few places on the floor of the sea, for they were washed down the mountainsides by the rain.
Diamonds are very rare. There are not many diamond pipes or diamond-producing rivers in the world. During the last century, adventurers from Europe went to Brazil, because they had heard that there were diamonds in the River Amazon. [34]Most of these early diamond miners died of illness or were lost forever in the great forests.
The earliest known diamonds were found in India many centuries ago. The most recent and exciting discoveries have been made in Eastern Russia. But most of the world’s diamonds now come from the Congo, from Tanzania-which has the largest diamond mine in the world-and from South Africa.
选项
A、They can be easily damaged.
B、They are formed with great volcanic heat and pressure.
C、They are brought up to the surface by earthquakes.
D、They can be found everywhere.
答案
B
解析
短文说,钻石是火山热和压力的产物。所以B正确。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3589034.html
相关试题推荐
[originaltext]Scientistshavediscoveredthatplantsthemselvesproducemany
[originaltext]Scientistshavediscoveredthatplantsthemselvesproducemany
[originaltext]Scientistshavediscoveredthatplantsthemselvesproducemany
[originaltext]InasmalllaboratoryattheMedical.UniversityofSouthCar
[originaltext]ManychildrenactinTVshows.Theyworkseveralhoursevery
[originaltext]M:WhataboutthispostofRetailManagerwe’regoingtoadvertis
[originaltext]M:WhataboutthispostofRetailManagerwe’regoingtoadvertis
[originaltext]M:WhataboutthispostofRetailManagerwe’regoingtoadvertis
[originaltext]M:Hi,Mandy.How’severythinggoing?W:Nottoogood,Isuppose.
[originaltext]MaryKatherineGoddardwastheonlywomanwhosignedonthe
随机试题
【B1】[br]【B2】A、inB、underC、byAin意为“在……之内(上),在……期间,从事于,符合,穿着”;under意为“在……之下,在…
Whataretheytalkingabout?[br][originaltext]W:Hey,Iheardyoufinallylan
某施工单位承接了一4×20m简支梁桥工程。桥梁采用扩大基础,墩身平均高10m。项
某行政单位已按规定程序报经批准,自2018年年初起对外出租一栋旧办公楼,租期4年
下列属于监控主体的是()。A.政府 B.监理单位 C.勘察设计单位 D.
以下关于原位测试的表述不正确的是( )。A.扁铲侧胀试验适用于碎石土、极软岩、
卫生行政部门决定不予医师执业注册的,申请人有异议时A、只能申请复议 B、只能向
精神疲惫,意识朦胧,困倦嗜睡是因()A.心肾阳虚 B.脾虚不运 C.邪
请从所给的四个选择中,选择唯一的一项填在问号处,使之呈现一定的规律性。
利润表中的“综合收益总额”项目,可以为财务报表使用者提供企业实现净利润和其他综合
最新回复
(
0
)