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
2023-08-31
96
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、In the valley.
B、On the floor of the rivers.
C、In the narrow volcano pipes.
D、On the top of the mountains.
答案
C
解析
短文说,钻石是在狭窄的火山筒被发现的。所以C正确。
转载请注明原文地址:https://tihaiku.com/zcyy/2972769.html
相关试题推荐
[originaltext]Insomechildrenwhogoblind,certainpartsofthebraintha
[originaltext]Insomechildrenwhogoblind,certainpartsofthebraintha
[originaltext]Aftertwodecadesofgrowingstudentenrollmentsandeconomic
[originaltext]Aftertwodecadesofgrowingstudentenrollmentsandeconomic
[originaltext]Aftertwodecadesofgrowingstudentenrollmentsandeconomic
[originaltext]Onethousandfortydollars:That’showmuchThomasWellersp
[originaltext]BecauseIrelandisanislandgeographicallynearthemainland
[originaltext]BecauseIrelandisanislandgeographicallynearthemainland
[originaltext]BecauseIrelandisanislandgeographicallynearthemainland
[originaltext]EnglandwasthefirstcountrytocompetewithSpainforclaim
随机试题
[originaltext]M:Icametotalktoyouabouttransferringmymajoroutofthem
Ofallthecomponentsofagoodnight’ssleep,dreamsseemtobeleastwithi
有关可行性研究的叙述中错误的是()。A:信息系统项目开发的可行性研究要从可能性
下列各项工作中,属于审计实施阶段的有( )。A.编制年度审计项目计划 B.要
硝苯地平的适应证不包括()。A.稳定型心绞痛 B.不定型心绞痛 C.变异型
在回归直线yc=a+bx,b
李某所在单位发生火灾,李某为抢救公司物质,双腿严重砸伤,后双腿截瘫,日常生活不便
对编造影响证券交易的虚假信息,扰乱证券交易市场的,处以()万元的罚款,构成犯罪
原告孙某与已故的王某是朋友关系,王某生前曾向其借款7700元,并打过欠条。王某去
下列整定内容中属于成套配电装置过电流整定的是()。A.电压元件整定 B.温度
最新回复
(
0
)