首页
登录
职称英语
[originaltext] Scientists say sharks have lived in the world’s oceans for mi
[originaltext] Scientists say sharks have lived in the world’s oceans for mi
游客
2024-05-06
4
管理
问题
Scientists say sharks have lived in the world’s oceans for millions of years. Scientists say there are more than three hundred and fifty different kinds of sharks.
Sharks do not have bones, and a shark has an extremely good sense of smell. It can find small amounts of substances in the water, such as blood, body liquids and chemicals produced by animals. Sharks also sense electrical and magnetic power linked to nerves and muscles of living animals. These powerful senses help them find their food. Some sharks will eat just about anything. Many unusual things have been found in the stomachs of some tiger sharks. They include shoes, dogs, a cow’s foot and metal protective clothing.
About forty percent of the different kinds of sharks lay eggs. The others give birth to young. Some sharks carry their young inside their bodies like humans do.
Scientists are beginning to understand the importance of sharks to humans. Medical researchers want to learn more about the shark’s body defense system against disease. They know that sharks recover quickly from injuries. Sharks appear never to suffer infections, cancer or heart diseases.
选项
A、Bone structure.
B、Smell ability.
C、Birth mode.
D、Recover ability against disease.
答案
C
解析
细节考察题。相关句子:“Some sharks carry their young inside their bodies like humans do.”可以看出部分鲨鱼的生育方式与人类一样。
转载请注明原文地址:https://tihaiku.com/zcyy/3585820.html
相关试题推荐
[originaltext]WhenMidoriwastwoyearsold,sheoftenclimbedontothepi
[originaltext]WhenMidoriwastwoyearsold,sheoftenclimbedontothepi
[originaltext]Doyouknowhowtoadvertiseforahank?Ifyouaskpeopleab
[originaltext]Doyouknowhowtoadvertiseforahank?Ifyouaskpeopleab
[originaltext]WhoisthemostimportantpersonintheUnitedStates?Someo
[originaltext]WhoisthemostimportantpersonintheUnitedStates?Someo
[originaltext]W:Wouldyoumindtellinguswhatyouwouldliketobedoingfive
[originaltext]M:Hi,Janet.Youaresoluckytobedonewithyourfinalexamsa
[originaltext]M:Hi,Janet.Youaresoluckytobedonewithyourfinalexamsa
[originaltext]W:I’dliketobookoneeconomy-classtickettoParisforthisSa
随机试题
[originaltext]W:Idon’tbelievewe’veevermetbefore,havewe?M:We’vebeen
Completethenotesbelow.WriteNOMORETHANTWOWORDSforeachanswer.
[originaltext]M:Doyouthinkyou’llbeabletoattendtheorientationfornew
雇员忠诚保证保险的保障范围包括()。A.由保险单指定区域的可移动财产损失
根据《合同法》规定,违约人承担赔偿损失责任的构成条件有()。A.一方当事人有
暗示教学法的一个重要原则是()A.愉快而不紧张的原则 B.理论联系实际的原则
某工厂11月份工作忙,星期日不休息,而且从第一天开始,每天都从总厂陆续派相同人数
在下列有机物中,经催化加氢反应后不能生成2-甲基戊烷的是( )。
基金管理公司进行实际投资的基础和前提是()。A:投资决策B:投资交易C:投资
水准仪主要测定地面点间( )。A.海拔 B.绝对高程 C.高差 D.相对
最新回复
(
0
)