首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
1 Because a diamond is made of pure carbon, it has an immensely strong crystal structure, making it the hardest of all minerals.
1 Because a diamond is made of pure carbon, it has an immensely strong crystal structure, making it the hardest of all minerals.
admin
2019-07-01
87
问题
1 Because a diamond is made of pure carbon, it has an immensely strong crystal structure, making it the hardest of all minerals. Evidence suggests that diamonds were formed deep within the earth, and some stones may be three billion years old. Alluvial diamonds, those recovered from river gravel, can be carried long distances in rough water with other rocks. Diamond-bearing gravel is the result of one of nature’s sorting processes. Many of the diamonds found in gravel are of gem quality because flawed or fractured stones are more likely to be broken up and eroded away.
2 A diamond shines with great luster and fire, properties that are best revealed in the cut known as "brilliant." The brilliant cut dates from the seventeenth century and remains the most popular cut today because it enhances the brilliance of the gem with the least possible sacrifice of weight. It typically has 58 facets, but sometimes up to 104, and resembles two pyramids set base to base.
3 Most natural diamonds are nearly colorless, but truly colorless diamonds are rare. A few stones are found of all colors in the spectrum, and good-quality ones are known as "fancies." Diamonds of exceptional beauty and rarity are highly prized. Some have long, recorded histories, and others have inspired fantastic legends. The deep blue Hope diamond has a reputation for bringing bad luck; however, the sinister stories about it are untrue. At more than 45 carats, the Hope is one of the world’s largest diamonds and is apparently flawless.
Which sentence below best expresses the essential information in the highlighted sentence in paragraph 3?
选项
A、Only a few diamonds are extraordinarily beautiful.
B、Because diamonds are rare, we consider them beautiful.
C、The rarest and most beautiful diamonds are very valuable.
D、Diamonds are the most precious minerals on Earth.
答案
C
解析
The rarest and most beautiful diamonds... is a paraphrase of Diamonds of exceptional beauty and rarity.......are very valuable is a paraphrase of ...are highly prized.
转载请注明原文地址:https://kaotiyun.com/show/ulfO777K
0
托福(TOEFL)
相关试题推荐
Completethenotesbelow.WriteNOMORETHANTWOWORDSforeachanswer.TheroleofsleepinhumansandanimalsImportanceofsl
Whatdothestudentsdecideaboutthefollowingpartsoftheproject?Writethecorrectletter,A,BorC,nexttoquestions27-
Choosethecorrectletter,A,BorC.PlanningapresentationonnanotechnologyRusssaysthathisdifficultyinplanningthep
Choosethecorrectletter,A,BorC.IfAmericanhadanextradayper-week,theywouldspendit
success本题有关未来宿命主义者的生活态度。录音原文的thecertaintyoflife是题目中astrongbeliefinlife的同义替换。
A、They’remuchlargerthanspiders.B、They’requitedelicate.C、Theyhaveunusualwaysofgatheringfood.D、Theydevelopedalon
(Addressing)themesthatwere(unique)American,thepoetWaltWhitman(celebrated)thelivesof(ordinarypeople).
THESENSEOFSMELL1Smellisthemostdirectofallthesenses.Itisthoughttobetheoldestsenseintermsofhumanevolut
Unlikecompetitiverunning,racewalkersmustalwayskeepsomeportionoftheirfeetincontactwiththeground.
ManymodernTVviewerscomplainabout______thathaveconstantlyinterruptedanddestroyedtheirviewingtheprograms.
随机试题
下列疾病属食物中毒的是_______。
胸痹心痛的临床表现包括
嗜酸性粒细胞减少可见于
据报道,国家行政学院电子政务研究中心日前发布的《2011年中国政务微博客评估报告》显示,截至去年年底,中国政务微博客总数达到50,561个,较2011年年初增长776.58%。关于法治政府建设,下列说法中错误的是哪一项?
受振动的地下工程的防水应采用()。
下列适合进行牛市套利的商品是()。
如果将在教学过程中实施测验的解释视为形成性评价,那么对期末考试结果的解释就是()。
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性。
针对财产权利的公安行政强制执行主要包括( )等。
Questions15-17ChoosetheappropriatelettersA-Dandwritetheminboxes15-17onyouranswersheet.*
最新回复
(
0
)