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
2023-09-17
65
管理
问题
Scientists say sharks have lived in the world’s oceans for millions of years. Scientists say there are more than 350 different kinds of sharks.
Sharks do not have bones, and a shark bas 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 live 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
In which point some sharks are similar with humans?
转载请注明原文地址:http://tihaiku.com/zcyy/3020850.html
相关试题推荐
[originaltext]M:Thisisyourannualperformanceevaluation.W:SohowdidId
[originaltext]M:Thisisyourannualperformanceevaluation.W:SohowdidId
[originaltext]M:Doyougoouttowork?W:Notregularly.Iworkathomemosto
[originaltext]M:IneedaticketforFlight220onDecember22.W:OK,sir.It
[originaltext]M:IneedaticketforFlight220onDecember22.W:OK,sir.It
[originaltext]W:Hello,mayIhelpyou?M:Yes,I’dliketobookaroomfortom
[originaltext]W:Hello,mayIhelpyou?M:Yes,I’dliketobookaroomfortom
[originaltext]M:Soyoustartedyourowncompany.W:Yeah!Iamalwaysinterest
[originaltext]M:Excuseme.I’dliketobookaroomforTuesday.W:Whenwill
[originaltext]M:Excuseme.I’dliketobookaroomforTuesday.W:Whenwill
随机试题
ItwasSaturdaymorninginMay,whenMrs.Greendrewbackhercurtainsandl
Whataddedtothedifficultyintheputtingoutofthebushfire?[originaltext]
[audioFiles]audio_eufm_j31_001(20082)[/audioFiles]A、Heisagoodfriendofthe
[originaltext]W:Hello,AirChina.WhatcanIdoforyou,Sir?M:CanIbooka
施工方案技术经济比较的主要指标有()。Ⅰ.单位面积造价;Ⅱ.降低成本率;Ⅲ.
A.1.0 B.0.10 C.0.010 D.
以下()属于柜台业务存在的主要操作风险点。A.柜员为实名客户开立账户 B.有
共用题干 患者女性,32岁。头昏、乏力、贫血,不能坚持工作。7年前开始感乏力、
20世纪初普朗克、波尔等物理学家共同创造了量子力学,它与相对论一起被认为是现代物
患者,男,70岁,外出登山途中突然出现胸前区疼痛,疼痛放射至左肩,休息2分钟后缓
最新回复
(
0
)