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.
【C15】
选项
A、for
B、against
C、without
D、towards
答案
B
解析
For支持,against反对,without没有,towards朝、关于。根据原文,食人鱼组成大的鱼群作为保护以抵御捕食者。选项B是正确的。
转载请注明原文地址:https://kaotiyun.com/show/o7eC777K
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
Therailroadindustrycouldnothavegrownaslargeasitdidwithoutsteel.Thefirstrailsweremadeofiron.Butironrailsw
Therailroadindustrycouldnothavegrownaslargeasitdidwithoutsteel.Thefirstrailsweremadeofiron.Butironrailsw
Studentswillneed【21】alloftheirlanguageskillsinordertounderstandthereadingselectionsinReader’sChoice.Thebookco
Allwhalesfallintotwogroups,thosewithteethandthosewithout.Bothbelugaanddolphinbelongtothesuborderoftoothedw
AcrosstheUnitedStates,scientistsaremountingwhatmaybecomethemostinnovativeagriculturalresearchdrivesincethe1920
AcrosstheUnitedStates,scientistsaremountingwhatmaybecomethemostinnovativeagriculturalresearchdrivesincethe1920
AcrosstheUnitedStates,scientistsaremountingwhatmaybecomethemostinnovativeagriculturalresearchdrivesincethe1920
Toaphilosopher,wisdomisnotthesameasknowledge.Factsmaybeknowninenormousnumberswithouttheknowerofthemloving
Itisdifficulttoimaginewhatlifewouldbelikewithoutmemory.(78)Themeaningsofthou-sandsofeverydayperceptions,the
随机试题
对学前智力落后儿童进行教育训练时,要经常性地、反复地进行。这体现了()
诊断腹腔隔室综合征时,膀胱内测得的压力应大于
辛某,男,67岁,患喘证20余年,冬令发作加重,平素微喘而咳。近日因气候寒冷,咳喘加重,动则喘甚,痰多黏稠色白,喉中略有痰鸣,面色青晦,心慌,畏寒,足冷,形萎神疲,舌淡暗,苔薄白而滑,脉沉弱。本病例的基础方是
激期佝偻病的血生化变化是
下列关于建设工程监理规划的说法,不正确的是( )。
与学习活动本身相联系的学习动机属于()
美国心理学家吉尔福特把智力分为三个维度:______、操作、产品。
材料1: B市人民医院始建于1950年,是一所集医疗、科研、教学、预防保健于一体的现代化综合性三级甲等医院,是B市医疗技术指导中心和全市120急救中心,为公益二类事业单位。2019年,医院门诊量突破160万人次。一直以来,B市人民医院致力于开展
2003—2007年,甲国平均每年比乙国少排放的碳总量为()。
TaskOne—Theindustriestheyreported•Forquestions13-17,matchtheextractswiththeindustries,listedA-H.•Foreach
最新回复
(
0
)