首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Most of the animals have little connection with animals of a different kind, unless they hunt them for food. Sometimes, however,
Most of the animals have little connection with animals of a different kind, unless they hunt them for food. Sometimes, however,
admin
2009-02-15
89
问题
Most of the animals have little connection with animals of a different kind, unless they hunt them for food. Sometimes, however, two kinds of animals come together in a partnership (伙伴关系)which is good for both of them. You may see some birds sitting on the backs of sheep. This is not because they want a ride, but because they find easy food in the parasites (寄生虫)on sheep. The sheep allow the birds to do so because they move the cause of discomfort. So although they can live without each other, they do better together.
Sometimes an animal has a plant partner. The relationship develops until the two partners can not live without each other. This is so in the corals(珊瑚)of the sea. In their skins there are tiny plants which act as "dustmen", taking some of the waste products from the corals and giving in return oxygen which the animal needs to breathe. If the plants are killed, or are even prevented from receiving light so that they cannot live normally, the corals will die.
选项
A、they can eat its parasites.
B、they enjoy travelling with the sheep
C、they depend on the sheep for existence
D、they find the position most comfortable
答案
A
解析
从文章第一段第四句This is not because they want a ride,but because they find easy food in the parasites on sheep.可知它们想吃羊背上的寄生虫。
转载请注明原文地址:https://kaotiyun.com/show/JcAd777K
本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
0
公共英语二级笔试
公共英语(PETS)
相关试题推荐
AnembarrassingexperienceItwasthesmallhoursofthemorningwhenwereachedLondonAirport.IhadcabledLondonfromAm
Somanypeopleusethecellphonesofrequentlyeveryday.But【C1】______littleiscertainaboutthehealtheffectsofitsuse.M
WhatisSallydoingnow?
IntheUnitedStatestoday,familiesbasicallyhavetwocontrastingattitudestowardtelevision.Manyfamilies【C1】______thetele
Anne:Ireallydon’tthinkthatit’smoraltotargetchildrenwithadvertisements,astheyarenotyetabletodistinguish
Idon’tknowwhatitisaboutEnglishpubsthatIfindsodisappointing.【C1】______,pubsaresupposedtobetheEnglishman’s【C2
Thelawyerisapersonwithaveryspecialknowledgeofthelaw—boththecivilandcriminal.Becauseofthisknowledgethelawye
Nowadays,astandardformeasuringpowerhaschanged.Thesechangesforetellanewstandardformeasuringpower.Nolongerwill
Whataretheguests’comments?
Theextraordinaryriseoflivingaloneisthebiggestsocialchangethatwe’veneglectedtoidentify,letaloneexamine.Con
随机试题
在操作系统中,死锁出现是指
患者,男性,45岁,因右上颌肿物行右上颌骨切除加植皮术。术后所植皮片大部分坏死,遗留较大肉芽创面,准备再行皮肤移植消灭创面,此病例植皮时最好采用
【背景资料】某施工单位承建了一条长20km的二级公路,设计时速为60km/h。施工前,在项目部,设计单位将相关的设计资料交给了施工单位。施工单位作了充分的准备,复核了GPs点、水准点,测绘了横断面等,核对无误后,进行现场放样测量。其中,
期货公司申请金融期货结算业务资格,要求高级管理人员近( )年内未受过刑事处罚。
关于基金销售机构的准人条件,下列表述错误的是()。
2008年陈老太太将20万元借给了老曹,2018年老曹才将20万元还给了陈老太太,因通货膨胀导致这20万元仅相当于当年一半的购买力,则这十年的通货膨胀率平均大概是()。
如果函数f(x)的定义域为[1,2],则函数f(x)+f(x2)的定义域是.
下面描述中错误的是()。
在考生文件夹下,打开文档WORDl.docx,按照要求完成下列操作并以该文件名(WORDl.docx)保存文档。【文档开始】信息安全影响我国进入电子社会随着网络经济和网络社会时代的到来,我国的军事、经济、社会、文化各方面都越来越依赖于网络。与此同时,电脑网
SharksSharksareamazingfishthathavebeenaroundsincelongbeforethedinosaursexisted.Theyliveinwatersallovert
最新回复
(
0
)