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
68
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://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
BufordisthesmallesttownintheUS.Thetownishighinthemountainsand
CarmenAraceMiddleSchoolissituatedinthepastoraltownofBloomfield,C
A、Theywouldmisstheirtrain.B、Hedidn’tseethetraincoming.C、Shewassure
[originaltext]Forgoodorbad,computersarenowpartofourdailylives.W
患儿,女,2岁,流涕伴发热1天,发热38.5℃左右,今起出疹,由面颊迅速扩展到躯
运动兴趣的形成一般都要经历哪三个阶段?( )A.有趣—乐趣—志趣 B.乐趣—
下面谱例是一首弦乐四重奏的片段,其中G谱号谱表由哪个乐器演奏?() A.低
急性肾盂肾炎最常见的致病菌是A.猪副嗜血杆菌 B.变形杆菌 C.大肠埃希菌
初中生小明因多次打架斗殴被学校勒令退学,小明家长对学校给予的处分不服,于是向有关
正循环回转钻孔的特点有()。A.泥浆通过钻杆中心排出至沉淀池内 B.钻进与排
最新回复
(
0
)