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
54
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、A shark attacks a person for no reason.
B、A shark attacks a person every time it sees one.
C、A shark attacks a person only if it is bothered.
D、A shark attacks a person only at night.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3464289.html
相关试题推荐
[originaltext]Globalwarmingiscausedbyanincreaseinthegreenhouseeff
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubr
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubr
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubr
[originaltext]W:Simon,couldyoureturnthetoolsIlendyouforbuildingthe
[originaltext]W:Simon,couldyoureturnthetoolsIlendyouforbuildingthe
[originaltext]W:Simon,couldyoureturnthetoolsIlendyouforbuildingthe
[originaltext]W:Simon,couldyoureturnthetoolsIlendyouforbuildingthe
[originaltext]Formanyyears,officialsoftheNationalInstitutesofHealt
[originaltext]W:You’vesoldyourcar.Youdon’tneedone?M:Notreally.I’ve
随机试题
【B1】[br]【B9】A、toB、againstC、forA考查习惯用法。talktosomeone意思是“跟某人沟通”。所以,A项符合题意。
Whoneedsapublisher?BobYoung,CEOofprint-on-demandserviceLulu,com,
在十二世纪及随后的几个世纪中,练金术在欧洲得到广泛的研究,并引起许多有学问的人的注意.虽然他们制造金子的种种尝试注定了是要失败的,但是他们的工作却使许
下列是软膏烃类基质的是A:羊毛脂 B:蜂蜡 C:硅酮 D:凡士林 E:聚
哪项不符合腺样囊性癌的肿瘤(如组图)生物学行为() A.肿
()业务是指出租人根据承租人对租赁物和供货人的选择或认可,将其从供货人处取得的
A.猪苓汤 B.五苓散 C.防己黄芪汤 D.实脾散 E.真武汤小便不利,
共用题干 一般资料:求助者,男性,19岁,士兵。案例介绍:求助者原先是个比较活
关于绿色债券相关规定,下列说法正确的是()。A.仅允许绿色投资基金发行
(2017年真题)地下工程喷射混凝土施工时,正确的工艺要求有()。A.喷射作业区
最新回复
(
0
)