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
34
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
Karen:Hello.CouldIspeaktoJustin,Please?Justin:______A、Yes,youcould.B
JapaneseComputerIsWorld’sFastest,asU.S.FallsBackThe
IstheInternetMakingUsForgetful?A)Atouristtakesapic
与城市的区域范围有关的概念主要有()。A.城市行政区 B.城市文化区 C
丙酮酸还原为乳酸,提供所需氢的是 A.FMNH2 B.FA.D.H2 C.
我国在协调历史文化名城与经济加速发展、城市规模迅速膨胀阶段采用的有效办法是(
简述现代企业人力资源管理各个历史发展阶段的特点。
哪位医家首先提出了具有传染性的“乖戾之气”A.医和 B.张仲景 C.葛洪
期现套利交易又称为( )。A.风险套利 B.无风险套利 C.价差套利 D.
水泥土桩应在施工后一周内用()手段检查成桩质量。A.开挖检查 B.声波透射法
最新回复
(
0
)