首页
登录
职称英语
What does the speaker say about the skin of starfish? [originaltext] Welcome
What does the speaker say about the skin of starfish? [originaltext] Welcome
游客
2024-09-20
1
管理
问题
What does the speaker say about the skin of starfish?
Welcome to our aquarium. As we begin our tour, the first animal we will see today is the starfish. You probably have seen pictures of the starfish, but in a few minutes you will see some live ones and learn a little about their structure. First of all, starfish are not really fish, they belong to the family of echinoderms which are spiny skinned sea animals, (17)that is, their skin is covered with thorny bumps. Most starfish have five arm-like extensions on their bodies. And so they look like a five-pointed star. But some other kinds have as many as 40 or more arms. Starfish, like other members of the echinoderm family, have what’s called radial symmetry.(18)All that means is that the body part of these animals are arranged around the center, kind of like spokes of a wheel around a hub. One of the special features of the starfish is that(19)it can drop off arms as a defensive reaction, to get away from an attacker, for example. They can then grow new arms to replace the old ones.
选项
A、It consists of a protective film.
B、It is covered with scales.
C、It can be shed easily.
D、It is covered with sharp bumps.
答案
D
解析
情景事实题。由句(17)可知,它们的皮肤上都覆盖着一层尖锐的突起。因此D为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3766587.html
相关试题推荐
WhichofthefollowingisCORRECT?[br][originaltext]TheAsianelephantis
Today’sWorldismainlyabout______.[br][originaltext]M:Hey,Sis.Areyouin
Today’sWorldismainlyabout______.[originaltext]M:Hey,Sis.Areyouinterest
Wheredoesthemangettheinformationabouttheaquarium?[br][originaltext]M
Wheredoesthemangettheinformationabouttheaquarium?[br][originaltext]M
Wheredoesthemangettheinformationabouttheaquarium?[originaltext]M:Hi,
GermanChancellorAngelaMerkelmadeherspeechin______.[originaltext]Germ
WhatistheJapan’sunemploymentrateinJanuary?[br][originaltext](26)Ja
Howmanyhijackersareinvolvedinthenewsitem?[originaltext]Russiancomm
Howmanypeoplewerewoundedinthefighting?[originaltext](22-1)Thiswast
随机试题
Thenewspaperreporters______thatthemanwasmurderedbuttheyhavegivenno
错
大额可转让定期存单与传统的定期存款相比,不同点体现在()。A.定期存款记名
睡眠呼吸暂停综合征与下列哪项无关A.睡眠或清醒时均出现氧饱和度下降 B.可出现
女,41岁。夜间上腹痛3年,胃镜检查确诊为十二指肠溃疡,近2周来疼痛变为餐后腹痛
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
排便不爽所属的证候是( )。A.脾肾阳虚证 B.肝郁脾虚证 C.脾虚气陷证
依据法律规定,银监会对银行业金融机构进行检查时,对涉嫌违法事项相关的单位和个人可
应用广谱抗菌药物(头孢菌素类)后,体内可能缺乏的维生素有A.维生素A B.维生
女,28岁,婚后3天突起畏寒高热,尿频伴尿急,侧腰痛,既往无类似发作,尿常规:蛋
最新回复
(
0
)