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
2023-08-30
39
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/2969556.html
相关试题推荐
[originaltext]W:Iwaswonderingifyou’dletmestaywithyouforafewdays.
[originaltext]W:Iwaswonderingifyou’dletmestaywithyouforafewdays.
[originaltext]Why,youmaywonder,shouldspidersbeourfriends?(26)Beca
[originaltext]Why,youmaywonder,shouldspidersbeourfriends?(26)Beca
[originaltext]Why,youmaywonder,shouldspidersbeourfriends?(26)Beca
[originaltext]Advertisementcanbethoughtofas"themeansofmakingknown
[originaltext]W:Hey,Jim,whatacoincidencetoseeyouhere!Longtimenosee
[originaltext]W:Hey,Jim,whatacoincidencetoseeyouhere!Longtimenosee
[originaltext]W:Hey,Jim,whatacoincidencetoseeyouhere!Longtimenosee
[originaltext]W:Exercise,exercise,exercise...wehearsomuchaboutitthese
随机试题
—Totalktoheryouwouldn’tthinkshe’sjustlostherjob.—Iknow.She’sobvi
Televisionisnowplayingaveryimportantpartinourlife.Buttelevision,
[originaltext]M:Doyouknowwhathappenedtometoday?Iwassoembarrassed.W
某企业进行薪酬制度设计时,将员工的职位划分为若干个级别,按员工所处的职位级别确定
与WHEREAGEBETWEEN18AND23完全等价的是()。
当代教学组织形式的发展趋势是()A.多元化 B.综合化 C.个别化 D.
患者男性,75岁,近期出现近事遗忘,智能减退,难以胜任简单的家务,不能正确回答自
作业时,起重机臂架、()等与架空输电线及其他带电体的最小安全距离不得小于
甲房地产开发公司(以下称甲公司)为境内上市企业,注册资本为3亿元。2016年甲公
下列有关注册会计师在执行财务报表审计时对法律法规的考虑的说法中,正确的有( )。
最新回复
(
0
)