首页
登录
职称英语
[originaltext] Hundreds of species of marine life manage to survive even in
[originaltext] Hundreds of species of marine life manage to survive even in
游客
2024-05-15
31
管理
问题
Hundreds of species of marine life manage to survive even in the darkest depths of the ocean. These tenants of the sea have evolved some extremely ingenious devices for locating their food and enemies.
Where the light is very dim, some of these deepwater species have developed enormous eyes with almost telescopic lenses, very much like those of owls. Others, especially the fish that survive where there is no light at all, are quite blind but have developed long feelers that enable them to identify and collect stray bits of food that come within a considerable radius of them.
Some inhabitants of the sea supply their own light. They have built-in torches that they can switch on and off, depending on whether they are pursuing or being pursued. Some have regular lamps, spots of steady light, which spread a faint glow through the water around them. One deepwater squid (鱿鱼) can spray a luminous fluid that lights up its immediate vicinity, a neat variation on the ink ejected by its cousins nearer the surface to becloud and darken the water. It is supposed that about half of the varieties of fish living in the dark depths of the ocean have some power of illumination.
选项
A、Supply their own light.
B、Locate food and enemies.
C、Compensate for the lack of light.
D、Both B and C.
答案
D
解析
细节归纳题 文章开头讲到几百种海洋生物能够在黑暗的深海中生存下来是由于他们有独特的方法去获取食物和避开敌人。下文中又谈到了这些生物获取光的方法。
转载请注明原文地址:https://tihaiku.com/zcyy/3599204.html
相关试题推荐
[originaltext]Hundredsofspeciesofmarinelifemanagetosurviveevenin
[originaltext]Hundredsofspeciesofmarinelifemanagetosurviveevenin
[originaltext]Banksarenotordinarilypreparedtopayoutallaccounts;th
[originaltext]Banksarenotordinarilypreparedtopayoutallaccounts;th
[originaltext]M:Nextmonthyou’regoingtocelebrateThanksgivingDay.Whenis
[originaltext]M:(19)Weallknowthatgoingtocollegecansuckyourwalletdry
[originaltext](26)Lastweek,wetoldhowtheEnglishlanguagedevelopedas
[originaltext](26)Lastweek,wetoldhowtheEnglishlanguagedevelopedas
[originaltext]GoingonlineisafavoriterecreationformillionsofAmerica
[originaltext]GoingonlineisafavoriterecreationformillionsofAmerica
随机试题
[originaltext]MostAmericancollegestudentsneedtobeefficientreaders.
Nexttimeyouenterausernameandpassword,thinkabouttherhythmofyourty
[originaltext]W:WhataretheadvantagesofE-education,ProfessorGu?M:There
A.P波 B.PR间期 C.QRS波群 D.ST段反映两心房去极化过程的是
营养琼脂培养基一般要求高温灭菌温度为()℃。A.100 B.110 C.
中药材适宜采收期确定的主要依据是A.药材中有效物质的含量与药用部分的产量结合考虑
按《中国药典》规定,含量测定的指标成分是盐酸小檗碱的中药是A.黄连 B.艾叶
下列关于项目监理机构组织形式的说法,错误的是()。A.直线制监理组织形式要求总监
容量是锅炉的主要性能指标之一,热水锅炉容量单位是()。A.t/h B.MW
于不发火(防爆的)面层质量验收的说法,正确的有()。A.采用的碎石应选用大
最新回复
(
0
)