首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A team of German scientists has taken pictures of an ancient fish that was thought to have died out long ago. The pictures may p
A team of German scientists has taken pictures of an ancient fish that was thought to have died out long ago. The pictures may p
admin
2013-10-14
74
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)______
(44)
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
The pictures show some fish can stand on their heads for over 2 minutes
解析
转载请注明原文地址:https://kaotiyun.com/show/v827777K
0
大学英语六级
相关试题推荐
A、France.B、Italy.C、Germany.D、America.C选项都是国家。从aGermanlikeme可以得知Johnny来自德国。
Amusselgripsahardsurfaceveryfirmlyto______.Scientistsarenotthinkingofusingmusselstoproducethesupergluemai
Whatproducesawaterproofsuperglue,actslikeavacuumcleaner,andeventeachesscientistsaboutgenerepair?Thehumblelit
Adepressivedisorderisanillnessthatinvolvesmoodandthoughtsonly.Depressionmightbethecauseof______.
Adepressivedisorderisanillnessthatinvolvesmoodandthoughtsonly.Majordepressionsseemtooccuronlytopeoplewhoha
Adepressivedisorderisanillnessthatinvolvesmoodandthoughtsonly.Bipolardisorderischaracterizedbycyclingmoodcha
Before1965manyscientistspicturedthecirculationoftheocean’swatermassasconsistingoflargeslow-movingcurrents,such
A、Thebosswasveryconsideratetohisworkers.B、Edwasn’tasgoodaworkerasthebossthought.C、Thebosshadplannedtogive
随机试题
(confuse)Ifyoutrytolearntoomanythingsatatime,youmayget________.
在城市房屋拆迁补偿安置中,()。
背景材料:某施工单位承包航空煤油中转油库的管道、储油罐、机泵、电器、仪表、消防等安装工程,施工技师要求是φ80以上的钢管和煤油储罐必须在现场进行喷砂和内外防腐处理;储罐要采用液压顶升法施工;施工现场要求不得有超过标准规定的粉尘和噪声产生。施工单位缺乏钢管
接触网静态检测内容包括()。
下列质量管理的职能活动中,属于DCA循环中“D”职能的活动室()。
出入境货物实行“先报检后报关”制度,统一采用凭( )通关。
甲、乙订立买卖合同,甲卖某型号钢材5吨给乙。但是在合同订立时,甲并没有此型号钢材。乙后来发现这一情况,于是向法院提起诉讼。下列关于合同效力及违约金的说法中,正确的有()。
张某(某市城镇居民)承包了某集体组织的荒地以经营果园,但该承包并没有办理登记。由于资金短缺,张某遂将果园抵押给银行,并签订了抵押合同,但并未办理抵押登记。由于科学经营获得了大丰收,但张某并不懂得销售的途径和方法,遂委托市里的朋友李某在市里代为销售,双方约定
enchmark是一组工(14),它用来度量计算机系统的(15)。以往各厂商都以公布各自产品的(16)值来反映处理器速度,但这往往与实际应用中系统的综合效果有差距,且缺乏专门测试机构、标准测试环境和统一的测试程序,所以可比性较差。近年以来,科学计算领域经常
TheHistoryofAmericanIndiansWhenEuropeansdiscoveredtheWesternhemisphere,theydiscoveredaraceofpeople.【1】______
最新回复
(
0
)