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
Scientists in the UK have announced that the piranhafish’s reputation【C1】______a fearsome【C2】______may well not be deserved. The
Scientists in the UK have announced that the piranhafish’s reputation【C1】______a fearsome【C2】______may well not be deserved. The
admin
2013-12-10
31
问题
Scientists in the UK have announced that the piranhafish’s reputation【C1】______a fearsome【C2】______may well not be deserved. The fish, which is found in the Amazon in Brazil, have been【C3】______as deadly carnivores(食肉动物)that work in shoals to overwhelm their prey and strip it of its flesh in seconds.
However, experts【C4】______St Andrews University say that piranhas are omnivores(杂食动物)that mainly eat fish, plants and insects. They form big groups not to hunt but to defend【C5】______against other predators, according to the team.
"Previously it was thought piranhas shoaled as it【C6】______them to form a cooperative hunting group," said Professor Anne Magurran. "【C7】______, we have found that it is primarily a defensive behavior. "
Piranhas can be attacked by animals【C8】______dolphins, caimans and large fish, so forming a shoal is a good way of【C9】______being killed. Piranhas of【C10】______age stay in the middle of the group for【C11】______and the【C12】______of the shoal differs according to the level of【C13】______When the water level is【C14】______, the fish form small groups as there is space to escape, but when the water level drops, they form large groups as protection【C15】______predators.
【C14】
选项
A、high
B、low
C、peaceful
D、chaotic
答案
A
解析
根据下一句:如果水位下降。说明这里应该是指水位比较高的时候。选项A是正确的。
转载请注明原文地址:https://jikaoti.com/ti/vFuGFFFM
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
报考英语专业的考生必做,非英语专业的考生不必做。Forthispartyouareallowed30minutestowriteacompositiononthetopic:MakeOurCitiesGreener.
Forthispart,youaregiven25minutestowriteacompositiononthetopic:DoClothesMakeaMan?Youshouldwritenolesstha
Therailroadindustrycouldnothavegrownaslargeasitdidwithoutsteel.Thefirstrailsweremadeofiron.Butironrailsw
Therailroadindustrycouldnothavegrownaslargeasitdidwithoutsteel.Thefirstrailsweremadeofiron.Butironrailsw
Allwhalesfallintotwogroups,thosewithteethandthosewithout.Bothbelugaanddolphinbelongtothesuborderoftoothedw
Allwhalesfallintotwogroups,thosewithteethandthosewithout.Bothbelugaanddolphinbelongtothesuborderoftoothedw
Manytheoriesabouttheoriginoftheoceanhavebeenproposedbyscientists.Themostwidelyacceptedoneisthattheearthat
Manytheoriesabouttheoriginoftheoceanhavebeenproposedbyscientists.Themostwidelyacceptedoneisthattheearthat
Toaphilosopher,wisdomisnotthesameasknowledge.Factsmaybeknowninenormousnumberswithouttheknowerofthemloving
Whenscientistsaretryingtounderstandaparticularsetofphenomena,theyoftenmakeuseofa"model."Amodel,inthescient
随机试题
A.窦房结B.心房结C.房室交界D.浦肯野纤维E.心室肌自律性最高的是()
患者,男性,25岁。发生左侧腹部及左下胸部撞击伤3小时。检查:神志清晰,体温37℃,血压80/60mmHg脉率120次/分,左侧腹压痛,有轻度反跳痛及肌紧张血白细胞20×109/L。尿镜检示红细胞20个/HP,正确的急救处理是
下列关于政府预算的表述,正确的有()。
刑事诉讼法规定,对驳回申请回避的决定,可以申请复议的主体不包括:
Ariver’scolorsholdcluestowhatflowsinitswater,fromsoft-greenalgaetoyellow-brownmud.Humaneyesmightmiss【B1】__
"RefrigeratorproductioninChinajumpedfrom1.4millionunitsin1985to10.6millionin1998,"accordingtoDavidFridley,ar
Inlessthanthreedecades"multiculturalism"hasbecomeawordimmediatelyrecognizablebypolicy【M1】______makers,socialcri
GapYearAgapyearisaperiodoftime,usuallyan【T1】______year,whenastudent【T2】______fromformaleducation.Itisoft
StressManagement1.Definitionofstress■Responseofthebodyto【T1】______stimuliorstressors【T1】______■Percept
In1791,GeorgeWashingtonpickedthesiteofthenation’scapital—Washington,D.C.HealsochosethespotwherethePresident’sh
最新回复
(
0
)