首页
登录
职称英语
Certainly no creature in the sea is odder than the common sea cucumber. All
Certainly no creature in the sea is odder than the common sea cucumber. All
游客
2024-10-17
39
管理
问题
Certainly no creature in the sea is odder than the common sea cucumber. All living creatures, especially human beings, have their peculiarities, but everything about the little sea cucumber seems unusual. What else can be said about it is: a bizarre animal that, among other eccentricities, eats mud, feeds almost continuously day and night but can live without eating for long periods, and can be poisonous but is considered supremely edible by gourmets.
For some fifty million years, despite all its eccentricities, the sea cucumber has subsisted on its diet of mud. It is adaptable enough to live attached to rocks by its tube feet, under rocks in shallow water, or on the surface of mud flats.
Common in cool water on both Atlantic and Pacific shores, it has the ability to suck up mud or sand and digest whatever nutrients are present.
Sea cucumbers come in a variety of colors, ranging from black to reddish-brown to sand-color and white. One form even has vivid purple tentacles. Usually the creatures are cucumber-shaped hence their name and because they are typically rock inhabitants, this shape, combined with flexibility, enables them to squeeze into crevices where they are safe from predators and ocean currents.
Although they have voracious appetites, eating day and night, sea cucumbers have the capacity to become motionless and live at a low metabolic rate — feeding sparingly or not at all for long periods, so that the marine organisms that provide their food have a chance to multiply. If it were not for this faculty, they would devour all the food available in short time and would probably starve themselves out of existence.
But the most spectacular thing about the sea cucumber is the way it defends itself. Its major enemies are fish and crabs. When attacked, it squirts all its internal organs into the water. It also casts off attached structures such as tentacles. The sea cucumber will eviscerate and regenerate itself when it is attacked or even touched; it will do the same if the surrounding water temperature is too high or if the water becomes too polluted. [br] Of all the features of the sea cucumber, which of the following seems to fascinate the author most?
选项
A、What it does when threatened.
B、Where it lives.
C、How it hides from predators.
D、What it eats.
答案
A
解析
定位于最后一段首句“但是有关海参给人留下的最深刻印象是它的防卫方式”,由此可知答案为[A]。
转载请注明原文地址:http://tihaiku.com/zcyy/3805277.html
相关试题推荐
Inrecentyears,second-handtransactionhasbeenquitecommon.Inthemarke
Certainlynocreatureintheseaisodderthanthecommonseacucumber.All
Certainlynocreatureintheseaisodderthanthecommonseacucumber.All
Certainlynocreatureintheseaisodderthanthecommonseacucumber.All
Certainlynocreatureintheseaisodderthanthecommonseacucumber.All
Whyaredivorcessocommonatpresent?[br][originaltext]Agoodmarriage
Acommonassumptionabouttheprivatesectorofeducationisthatitcaters
Acommonassumptionabouttheprivatesectorofeducationisthatitcaters
Acommonassumptionabouttheprivatesectorofeducationisthatitcaters
Acommonassumptionabouttheprivatesectorofeducationisthatitcaters
随机试题
AnswerthefollowingquestionsontheMoulexironusingNOMORETHANTHREEWORDS
NewHope,OldFearsBonnieKrull,54,hadalreadyha
某甲级监理公司通过投标承担了某高速公路的一个监理合同段的施工全过程的监理工作,并
在软件开发过程中,常采用图形表示相关的信息,()不用于表示软件模块的执行过程A
某公司欲开发一个智能机器人系统,在架构设计阶段,公司的架构师识别出3个核心质量属
按照我国《民事诉讼法》,需要保全证据的情况有下列的()。A、证据有灭失的
月经过多是指月经量大于A.40ml B.50ml C.60ml D.70m
依据《海商法》的规定,下列关于承运人对集装箱装运的货物的责任期间的謎JP个是正确
"扳机点"的特点不包括A.三叉神经分支区域内固定而局限的小块皮肤或黏膜 B.对
解剖式印模是在承托义齿的软硬组织处于A.静止状态下取得的印模,为有压力印模,用稠
最新回复
(
0
)