首页
登录
职称英语
[originaltext] Today we are going to talk about a species of fish that is ra
[originaltext] Today we are going to talk about a species of fish that is ra
游客
2023-12-25
44
管理
问题
Today we are going to talk about a species of fish that is rather unique: Today’s lecture is about sea horses, if you’ve seen a sea horse, you may have noted that it has a horse-like head attached to its body. The sea horse has a long snout that is good for sucking. Instead of scales like most fish, sea horses have skin that is stretched over bony plates. The body extends to a prehensile tail, meaning that the tail can be used to grasp. The sea horse may grasp sea grass or coral to keep it stable in a moving current.
The sea horse has fins on its back that it can use to propel it through the water. However, sea horses aren’t very good swimmers. They do not move quickly over great distances. The sea horse also has chest fins that it uses for stabilization. The chest fins help the sea horse float in an upright position.
One particularly unique feature of sea horse is that only the male becomes pregnant. The female inserts ripe eggs into the male’ pouch, where they are fertilized. The eggs become embedded in the pouch wall.
选项
A、They make attractive ornaments in seashell shops.
B、They can be kept as pets in home aquariums.
C、They have much smaller scales than most fish.
D、Only the male sea horse becomes pregnant.
答案
D
解析
该题涉及到最后一段。选项a、b、c均不符合原文内容,d为正确选项。
转载请注明原文地址:https://tihaiku.com/zcyy/3303014.html
相关试题推荐
[originaltext]Thesearchforoneoflife’sgreatestgoals,happiness,iswh
[originaltext]Inwinter,peoplemightlessentheiroutdoorexercise.Theda
[originaltext]Whichismorepopular—coffeeortea?IfyouareonTeamC
[originaltext]Areyouacatpersonoradogperson?Peoplearoundtheworld
[originaltext]Arecentstudysuggeststhatapoor-qualitydietmayincrease
Becauseexcessivelyhuntinghasdepletedmanywildlifespecies,gamepreservesa
Shouldwecareifover150knownspeciesofanimalshave【C1】______fromthee
Shouldwecareifover150knownspeciesofanimalshave【C1】______fromthee
Shouldwecareifover150knownspeciesofanimalshave【C1】______fromthee
Shouldwecareifover150knownspeciesofanimalshave【C1】______fromthee
随机试题
Isyourdoctortellingyouthetruth?Possiblynot,accordingtoanewsurve
______,Ihavetoputitawayandfocusmyattentiononstudythisweek.A、Howeve
国际金融市场是国际间进行金融交易的场所,其发展特点包括()。A.金融自由化
对实施过程出现的不合格品,项目部()有权提出返工修补处理、降级处理或作不合格品
患儿8个月,平时经常腹泻,近2个月面色苍白,食欲不振,喜吃土,精神不活泼。体检:
下列有关中枢性呼吸衰竭的叙述,错误的是()A.呼吸浅表 B.双吸气
患儿,8岁,支气管炎。查体:体温39.0℃,肺部有哮鸣音。医嘱:青霉素240万U
下列选项中,与"植物不可能都是多年生的"意思相同的是( )A.植物可能都不是多
关于CO2在血液中运输的叙述,正确的有( )。A.化学结合形式的CO2主要是碳
A市纺织厂的工人王某长期在网站上发表侮辱李某的言论,侵犯了李某的名誉权,情节严重
最新回复
(
0
)