首页
登录
职称英语
[originaltext] The sound of birds can be divided into 3 types including sing
[originaltext] The sound of birds can be divided into 3 types including sing
游客
2023-09-11
29
管理
问题
The sound of birds can be divided into 3 types including singing, crying and voice imitating. Singing is normally a continuous multi-syllable melody uttered by the birds under the control of sex hormone. Some sorts of singing are quite melodious and pleasant. During the breeding cycle, the changing and pleasant cries uttered by male birds are typical singings. Singing is an important way for a bird to defend its territories, to pronounce it has occupied a place and to warn other birds not to enter the area. The songs uttered by birds in singing are more different and complicated than their common cries, which mainly happen in the breeding cycle in spring and summer. Cries are not controlled by sex hormone and can be uttered by both male and female birds. Usually cries of birds are short and simple. But the cries of birds can mean a lot. They are used to communicate with one another and to inform one another about dangerous information. The cries of birds can express calling, warning, surprising and threatening. Sometimes it is very difficult to distinguish crying and singing. Generally speaking, cries are not affected by the change of seasons and can be uttered by all birds; Crying is an important way for birds to communicate with one another. Voice imitating means a bird is imitating the crying or voice of other birds. The biological meaning of voice imitating is not clear even now and it is highly probable that it will take a long time for people to discover the mystery.
选项
A、Cries of birds are affected by seasons.
B、Only some sorts of birds can cry.
C、Birds would cry when they meet dangers.
D、It is easy to tell the singing of a bird from its crying.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3005415.html
相关试题推荐
[originaltext]M:TellmeaboutyourtriptoParis.W:Well,wewalkedalot,vi
[originaltext]M:TellmeaboutyourtriptoParis.W:Well,wewalkedalot,vi
[originaltext]M:TellmeaboutyourtriptoParis.W:Well,wewalkedalot,vi
[originaltext]M:TellmeaboutyourtriptoParis.W:Well,wewalkedalot,vi
[originaltext]M:TellmeaboutyourtriptoParis.W:Well,wewalkedalot,vi
[originaltext]Somepeoplehaveverygoodmemories,andcaneasilylearnquit
[originaltext]Somepeoplehaveverygoodmemories,andcaneasilylearnquit
[originaltext]Somepeoplehaveverygoodmemories,andcaneasilylearnquit
[originaltext]Lastsummer,ItookmyfirstflightfromLondontoNewYork.I
[originaltext]Lastsummer,ItookmyfirstflightfromLondontoNewYork.I
随机试题
Althoughtherearebodylanguagesthatcancrossculturalboundaries,cultur
[originaltext]M:IhopeIdon’toversleep.Ihavegottocatchthefirstflight
America’sBrainDrainCrisisLosingtheG
试题三(25分)阅读以下关于某嵌入式实时系统的软件需求的叙述,回答问题1至问题3
性,35岁,阵发胸痛两年余。胸骨左缘可闻及粗糙的收缩期杂音,舌下含硝酸甘油后杂音
肉瘿内治法的主方是A.通窍活血汤 B.逍遥蒌贝散 C.海藻玉壶汤 D.牛蒡
某工厂新生产一批工件,检验员需对其进行抽样检验。当检验员用某尺测量某一工件的长度
在打印文档时,欲打印第1,3,9,及5~7页,在打印对话框中“页码范围”栏应输入
下列各指标中,( )是客户税前净利润与资产平均总额的比率。A.资产收益率 B
子宫内膜异位症最常见的发病部位是A.直肠 B.膀胱 C.卵巢 D.输卵管
最新回复
(
0
)