首页
登录
职称英语
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_002[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_002[/audioFiles]
游客
2024-09-23
39
管理
问题
选项
答案
The Migration of Birds
The most obvious feature of birds is that they can fly. / This facility gives them great mobility and control over their movements. / Many species can travel quickly and economically over long distances— / up to thousands of kilometers, / if necessary, crossing seas, deserts or other inhospitable areas. / They also have great orientation and navigational skills, / and are able to remember and re-find remote places they have previously visited. / Birds can thereby occupy widely separated areas at different seasons, / returning repeatedly to the same localities from year to year. / Although migration is evident in other animal groups, / including insects, mammals, and fish, / in none is it as widely and well developed as in birds. / The collective travel routes of birds span almost the entire planet. / As a result of migration, bird distributions are continually changing—/ on regular seasonal patterns, and on local, regional or global scales.
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3771101.html
相关试题推荐
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_069[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_068[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_066[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_003[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_002[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_064[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_062[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_061[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_009[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_008[/audioFiles]
随机试题
InterviewTipsforCollegeStudentsMostofthestudents
MorethantwomillionpeopleinEuropenowhavefibrebroadbanddirecttoth
Inwhichairportwilltheplaneland?[br]Whatshouldthepassengersdobefore
用治邪热壅肺之咳喘、气急,宜选用的药组是()A.陈皮、半夏 B.半夏、天
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性: A.如
建设单位领取了施工许可证,但因故不能按期开工,应当向发证机关申请延期,延期( )
共用题干 FlyingintoHistoryWhenyouturno
2011年国内生产总值为()亿元。 A.469793.8 B.42368
在《国际标准行业分类》中,对每个门类又划分为()。 A.大类、中类、小
以上各类心理学中,研究脑和行为关系的A、健康心理学 B、神经心理学 C、临床
最新回复
(
0
)