首页
登录
职称英语
A team of German scientists has taken pictures of an ancient fish that was t
A team of German scientists has taken pictures of an ancient fish that was t
游客
2023-08-26
72
管理
问题
A team of German scientists has taken pictures of an ancient fish that was thought to have died out long ago. The pictures may provide (36)______ information about the development of land animals from sea(37)______. The ancient fish is called a solakin. Several of them were photographed(38)______ in the Indian Ocean off the southern coast of Africa.
Scientists are(39)______ in the solakins because of their fins (鳍)or the fanlike parts of their bodies with which the fish can swim and keep their(40)______ in the water. The four fins of the solakins(41)______ from the bottom of their bodies. Scientists believe that the fins may(42)______ an early step in the development of legs for land animals.
The German scientists worked in a small(43)______. They sank to about 180 meters. They made still pictures, moving pictures and video tapes of six solakins.(44)______. The pictures also show them swimming upside down and backwards. Scientists are interested in all the actions of the solakins. (45)______. The German scientists say the solakins do not use their fins to move along the bottom of the ocean. But they say the fins do move together.(46)______ [br] (43)
A team of German scientists has taken pictures of an ancient fish that was thought to have died out long ago. The pictures may provide(36)important information about the development of land animals from sea(37)creatures. The ancient fish is called a solakin. Several of them were photographed(38)recently in the Indian Ocean off the southern coast of Africa.
Scientists are(39)interested in the solakins because of their fins(鳍)or the fanlike parts of their bodies with which the fish can swim and keep their(40)balance in the water. The four fins of the solakins(41)extend from the bottom of their bodies. Scientists believe that the fins may(42)represent an early step in the development of legs for land animals.
The German scientists worked in a small(43)submarine. They sank to about 180 meters. They made still pictures, moving pictures and video tapes of six so-lakins.(44)The pictures show some of die fish standing on their heads for up to 2 minutes. The pictures also show them swimming upside down and backwards. Scientists are interested in all the actions of the solakins.(45)They are particularly interested in seeing them use their fins the way land animals use their legs. The German scientists say the solakins do not use their fins to move along the bottom of the ocean. But they say the fins do move together.(46)This movement is common among horses and other four-legged animals but it is rare in fish.
选项
答案
submarine
解析
意为“潜水艇”。
转载请注明原文地址:https://tihaiku.com/zcyy/2959989.html
相关试题推荐
______(直到18世纪中叶)didscientistsrealizethatthewholeofthebrainwasinvolved
Foryears,scientistshavebeenstudyinghowmusicaffectsthebrainandits
Foryears,scientistshavebeenstudyinghowmusicaffectsthebrainandits
Foryears,scientistshavebeenstudyinghowmusicaffectsthebrainandits
Researchershavereconstructedanancienthumangenome(基因组)forthefirsttim
Researchershavereconstructedanancienthumangenome(基因组)forthefirsttim
Researchershavereconstructedanancienthumangenome(基因组)forthefirsttim
OnCrete,NewEvidenceofVeryAncientMarinersEarlyhumans
OnCrete,NewEvidenceofVeryAncientMarinersEarlyhumans
OnCrete,NewEvidenceofVeryAncientMarinersEarlyhumans
随机试题
Thisinteractiveon-lineprogramhelpsnon-nativewritersofEnglishimprove
[originaltext]M:Whatdoyouwantmetoget?I’mleavingnow.W:Pickupabar
男性,72岁。心悸,胸闷,查体:心尖区舒张期隆隆样杂音,心电图显示房颤,该患者心
目前常用头孢菌素中抗铜绿假单胞菌作用最强的是A.头孢哌酮 B.头孢噻吩 C.
A.槲寄生B.荆芥C.青蒿D.益母草E.金钱草茎呈圆柱形,表面黄绿色或棕黄色,具
患者女,35岁。双上肢烧伤患处疼痛较为迟钝。体检:双上肢布满小水疱,疱皮较厚。估
A. B. C. D.
一般而言,人的个性的形成主要取决于( )。A.遗传因素 B.环境因素 C.
易发霉的中药饮片有A.蜈蚣 B.鹿筋 C.蛤蚧 D.蕲蛇 E.胆矾
以下关于国际常用的几种建设工程施工承包合同条件的特点说法中,错误的是( )。A
最新回复
(
0
)