首页
登录
职称英语
What is this passage mainly about? [br] [originaltext] Scientists say shark
What is this passage mainly about? [br] [originaltext] Scientists say shark
游客
2024-10-21
0
管理
问题
What is this passage mainly about? [br]
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 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 fond. Some sharks will eat just about anything. Many unusual things have been found in the stomachs of some large 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、For their tasty meat.
B、For the principle of their defense system against disease.
C、For their solid skin.
D、For the principle of their birth modes.
答案
B
解析
根据文中提到的“...the shark’s body defense system against disease.”可知答案为B 。
转载请注明原文地址:https://tihaiku.com/zcyy/3811244.html
相关试题推荐
Fromthepassageweknowthatpiglets______.[br][originaltext]Pigletsmay
Fromthepassageweknowthatpiglets______.[originaltext]Pigletsmaybeha
Accordingtothewoman,whatgovernstheclotheswewear?[br][originaltext]M:
Whatisthepurposeofthemeeting?[br][originaltext]W:Well,we’reheretod
What’stherelationshipbetweenthetwospeakers?[br][originaltext]W:Welcom
What’stherelationshipbetweenthetwospeakers?[br][originaltext]W:Welcom
Untilwhattimewillthetornadowatchbeineffect?[br][originaltext]We
Untilwhattimewillthetornadowatchbeineffect?[br][originaltext]We
Untilwhattimewillthetornadowatchbeineffect?[originaltext]Weinter
WhatchangeshappenedattheAcademyAwards?[br][originaltext]Thisyear,
随机试题
Whatproportionofcell-phoneusersusetheirphonesregularlywhiledriving?[
[originaltext]Theyoungpeoplewhotalkofthevillageasbeing"dead"are
A.坏死 B.淤血 C.两者均有 D.两者均无脑梗死()。
实现目标过程的管理,首先进行的是()。A.高层管理预定目标 B.确立下级目
()是风险管理的第一道防线。A.风险监测团队 B.业务团队 C.风险管
药品零售药店对甲类非处方药可采用A.分柜摆放销售方式B.有奖销售方式C.开架自选
对班级授课制认识不正确的是()。A.班级授课制可以经济有效地大面积培养人才
唐太宗时期,假设国家要在关中一带修建一项大型水利工程,这项工程的实施涉及众多机构
公司领导从单位乘车出门开会,以60公里/小时的速度行驶了3小时。突然发现忘记带会
为了保证施工供电必要的可靠性和合理地选择供电方式,将用电负荷按其重要性和停电造成
最新回复
(
0
)