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
专升本
Most animals have little connection with animals of a different kind, unless they hunt them for food. Sometimes, however, two ki
Most animals have little connection with animals of a different kind, unless they hunt them for food. Sometimes, however, two ki
admin
2011-05-26
52
问题
Most 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 does good to both of them. You may have noticed some birds sitting on the backs of sheep. This is not because they want a ride, but because they find easy food in parasites(寄生虫) on sheep. The sheep allow the birds to do so because they remove the cause of discomfort. So although they can manage without each other, they do better together.
Sometimes an animal has a plant partner. The relationship develops until the two partners cannot manage without each other. This is so in the corals (珊瑚) of the sea. In their skins they have tiny plants which act as "dustman", taking some of the waste products from the coral and giving in return oxygen which the animal needs to breathe. If the plants are killed, or are even prevented from light so that they cannot live normally, the corals will die.
What does the second paragraph mainly discuss?
选项
A、Some animals and plants depend on each other for existence.
B、Some animals and plants develop their relationship easily.
C、Some plants depend on each other for food.
D、Some animals live better together.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/nSqC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Mostpeople______.Mostofusareright-handedand______.
WhydidStanleyWilliamswriteanti-gangbooks?WhichofthefollowingwouldWilliamswanttobehislegacy?
WhendidFather’sDayofficiallybegintohavenationalpopularity?WhatflowerwillbepopularonFather’sDay?
Thechildwassorry______hismotherwhenhearrivedatthestation.
DameEdnaisfamous______.WhydoesthewriterthinkitisfunnythatDameEdnaisreallyaman?
Accordingtotheauthor,reallygoodscience______.Itcanbeinferredfromthepassagethatscientistsofthe18thcentury__
SportsfansallovertheworldrecognizethenameMichaelJordan.FromTaiwantoTennessee.kidswearclotheswithhispictureo
Aresomepeoplebornclever,andothersbornstupid?Orisintelligencedevelopedbyourenvironmentandexperience?Strangelye
Theydidn’ttellme______gofortheirholiday.
Allthehousewiveswhowenttothenewsupermarkethadonegreatambition(strongwish):tobetheluckycustomer(顾客)whodidno
随机试题
设有定义:struct{intn;floatx;}s[2],m[2]={{10,2.8},{0,0.0}};则以下赋值语句中正确的是()。
______inyourposition,Iwouldhelphim.
十二指肠溃疡常见于
关于ANUG,哪一项描述是不正确的
含咖啡因的中成药()。
以下哪些地基处理方法适用于提高饱和软土地基承载力?()
()是政府通过调节利率来调节总需求水平,以促进充分就业、稳定物价和经济增长的一种宏观经济管理对策。
()由中国近代著名教育家、出版家陆费逵动议编纂,至今已有整整100年历史,是我围唯一一部以字代词,集字典、语文词典和百科辞典等功能于一体的大型综合性图书。
一、注意事项 1.申论考试,与传统作文考试不同,是对分析驾驭材料的能力、解决问题能力、语言表达能力的测试。 2.作答参考时限:阅读材料40分钟,作答110分钟。 3.仔细阅读给定的材料,按照后面提出的“申论要求”依次作答。二、给定材料 因
Socialevilswerefundamentallycausedby______inequality.
最新回复
(
0
)