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、To escape from their enemies. B、To catch more food. C、To use their developing flippers. D、To swim. B事实细节题 由于鲸鱼捕食的猎物是各种鱼类,久而久之,
A、To escape from their enemies. B、To catch more food. C、To use their developing flippers. D、To swim. B事实细节题 由于鲸鱼捕食的猎物是各种鱼类,久而久之,
admin
2010-05-09
13
问题
Whales--or their ancestors--were once land animals. Scientists believe that they roamed the earth about 150 million years ago.
The land-dwelling ancestors of this modem king of the sea were hunters with legs and the jaws and teeth of killers. Their favorite hunting grounds were probably shallow waters near the mouths of rivers or off a level stretch of coast, for fish, both finny and shell, were then more plentiful in the water.
Ages passed, and it became easier for these creatures to swim than to walk; millions of years later they were able to do without legs altogether. Now their hind legs had shrunk so that mere traces of them can be found under the skin when a whale is dissected.
选项
A、To escape from their enemies.
B、To catch more food.
C、To use their developing flippers.
D、To swim.
答案
B
解析
事实细节题 由于鲸鱼捕食的猎物是各种鱼类,久而久之,为了捕食到更多的猎物,它们逐渐从陆地转移到了海里。
转载请注明原文地址:https://kaotiyun.com/show/mvOK777K
0
大学英语六级
相关试题推荐
A、Hemightvisitthewomaninthehospital.B、Hewillrefusetoacceptthewoman’spaper.C、Hemaydenythewoman’srequesttoh
Inthelate1960s’,manypeopleinNorthAmericaturnedtheirattentiontoenvironmentalproblems,andnewsteel-and-glassskysc
Inthelate1960s’,manypeopleinNorthAmericaturnedtheirattentiontoenvironmentalproblems,andnewsteel-and-glassskysc
BothVegaandherfanscalledthemselvesavatarsbecausetheyimagedthattheythemselvesplayedattheconcertorattendedit.
HaveyouheardofBali,aplacetothesouthofIndonesia?It’sasmallislandbutisbecomingmoreandmorefamousbyitsfasci
Globalization,aprocesswherebyownersofcapitalareenabledtomovetheircapitalaroundtheglobemorequicklyandeasily,h
A、Pollutionproblems.B、Watersuppliesaroundtheworld.C、AnindustrialsiteinMissouri.D、Groundwaterpollution.BWhatisthi
A、EveryoneenjoyedhimselfatJohn’sparties.B、Thewomandidn’tenjoyJohn’spartiesatall.C、Itwillbethefirsttimeforth
A、Thewriter’sfamilyisthepoorestoneonthatstreet.B、Watchingtherichgirleatingcookies,thosehungrychildrencried.
A、Stricterdisciplineshouldbemaintainedinschoolsandfamilies.B、Moregoodexamplesshouldbesetforpeopletofollow.C、M
随机试题
患者男,63岁。因“右髋关节疼痛伴活动受限3个月”来诊。查体:体温36.2℃。X线片示:软骨下囊性变,骨组织有破坏与疏松交织现象,也可见软骨区半月形透亮区。本病最可能的诊断为
下述不属于风湿性心脏病二尖瓣狭窄基本病理变化的是
患者,男性,68岁,既往有高血压病及反复TIA发作(一过性晕厥、跌倒)病史,反复失眠1个月余,每晚睡眠仅2~3小时,甚至通宵不眠,针对本患者失眠症状,最宜选用的药物是()
女性,40岁,突发上腹痛10小时,急诊手术开腹探查见十二指肠球部前壁溃疡穿孔,胸腔内有大量食物残渣,胃十二指肠壁水肿。应选择的术式是
下列属于构成正当防卫条件的是()
常用的设计方案技术经济评价方法有( )。
会计机构负责人必须具备的条件之一是()。
按照报关的目的不同,报关可以分为()。
关于IEEE802系列标准的描述中,错误的是()。
如果在一台主机的Windows环境下执行命令Pingwww.pku.edu.cn得到下列信息Pingingwww.pku.edu.cn[162.105.131.113]with32bytesofdata:Requesttimedout.
最新回复
(
0
)