首页
登录
职称英语
[originaltext] Most people picture sharks as huge, powerful, frightening pre
[originaltext] Most people picture sharks as huge, powerful, frightening pre
游客
2024-02-19
55
管理
问题
Most people picture sharks as huge, powerful, frightening predators, ready at any moment to use their sharp teeth to attack unwary swimmers for no reason. [29] This idea of sharks, however, contains many misconceptions.
First, there are about 350 species of shark, and not all of them are large.
A second misconception concerns the number and type of teeth, which can vary tremendously among the different species of shark. A shark can have from one to seven sets of teeth at the same time, and some types of sharks can have several hundred teeth in each jaw. It is true that the fierce and predatory species do possess extremely sharp and brutal teeth used to rip their prey apart. [30] Many other types of sharks, however, have teeth more adapted for grabbing and holding than for cutting and slashing.
Finally, not all sharks are predatory animals ready to strike at humans without warning. In fact, [31] only 12 of the 350 species of shark have been known to attack humans, and a shark needs to be provoked in order to attack. The types of shark that have the worst record with humans are the tiger shark, the bull shark, and the great white shark. However, for most species of shark, even some of the largest types, there are no known instances of attacks on humans.
选项
A、All sharks have teeth.
B、A shark can have six rows of teeth.
C、A shark can have hundreds of teeth.
D、All sharks have extremely sharp teeth.
答案
D
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3464288.html
相关试题推荐
OverviewLikemanypeople,youmayexperiencecabin
OverviewLikemanypeople,youmayexperiencecabin
OverviewLikemanypeople,youmayexperiencecabin
[originaltext]Inanattempttoresisttherisingcostoffuelandfightthe
[originaltext]Inanattempttoresisttherisingcostoffuelandfightthe
[originaltext]Inanattempttoresisttherisingcostoffuelandfightthe
[originaltext]EducationisrequiredandfreeforeverychildintheUnited
[originaltext]EducationisrequiredandfreeforeverychildintheUnited
[originaltext]M:Hi!Cheryl.W:hello,Field!Howareyou?M:I’mfine.Wherea
[originaltext]M:Hi!Cheryl.W:hello,Field!Howareyou?M:I’mfine.Wherea
随机试题
AbudgetapprovedbytheEuropeanParliamentfortheEuropeanEconomicCommu
(1)Therewillbenovaledictoryspeech(毕业致辞)atJerichoHighSchool’sgraduat
Learningasecondlanguageistrickyatanyage(anditonlygetstougherthe
______(简装袖珍词典)canbeveryconvenienttouse.Apaperbackpocketdictionary
Itisnaturalforyoungpeopletobecriticaloftheirparentsattimesand
商业银行的信息披露中,关于经营业绩必须披露的内容不包括( )。A.资本收益率
患者,男,38岁。1小时前口服安眠药2瓶,由家人急诊入院,呼之无应答,神志昏迷。
下列低倍数泡沫灭火系统维护保养的做法,符合现行国家标准《泡沫灭火系统施工及验收规
在某地地震之后,某一社工机构前往灾区,为当地的几所小学开展学校社会工作,帮助当地
(2009年真题)反映钢筋塑性性能的基本指标有()。A.屈服强度 B.伸
最新回复
(
0
)