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
Sharks Perform a Service for Earth’s Waters It is hard to get people to think of sharks as anything but a deadly enemy. They
Sharks Perform a Service for Earth’s Waters It is hard to get people to think of sharks as anything but a deadly enemy. They
admin
2015-07-17
35
问题
Sharks Perform a Service for Earth’s Waters
It is hard to get people to think of sharks as anything but a deadly enemy. They are thought to【C1】______ people frequendy. But these fish perform a【C2】______service for earth’s watersand for human beings. Yet business and sport fishing are threatening their【C3】______. Somesharks are at【C4】______of disappearing from earth.
Warm weather may influence both fish and shark activity. Many fish swim near coastal areas【C5】______their warm waters. Experts say sharks may follow the fish into the same areas, 【C6】______people also swim. In fact,most sharks do not purposely charge at or bite humans.They are thought to mistake a person【C7】______a sea animal,such as a seal or sea lion. Thatis why people should not swim in the ocean when the sun goes down or comes up. Those are the【C8】______ when sharks are looking for food. Experts also say that bright colors and shiny jewelry may cause sharks to attack.
A shark has an extremely good sense of smell. It can find small amounts of substances in water,such as blood, body liquids and【C9】______produced by animals.These powerful【C10】______help sharks find their food. Sharks eat fish,any【C11】______ sharks,and plantsthat live in the ocean.
Medical researchers want to learn more about the shark’s body defense and immune systems【C12】______ disease.Researchers know that sharks【C13】______quickly from injuries. Theystudy the shark in hopes of finding a way to fight human disease.
Sharks are important for the world’s【C14】______.They eat injured and diseased fish. Theirhunting activities mean that the numbers of other fish in ocean waters do not become too 【C15】______. This protects the plants and other forms of life that exist in the oceans.
【C12】
选项
A、against
B、for
C、agree
D、favor
答案
A
解析
本句是说,医学研究员们想了解更多鲨鱼对抗疾病的身体防御和免疫系统。对抗用against。因此A项正确。
转载请注明原文地址:https://kaotiyun.com/show/C6Gd777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
HowtoSeeFriendshipMorethanfortythousandreaderstolduswhattheylookedforinchosefriendships,whattheyexpected(51)
LookingtotheFuture—2040Doyouforgettoturnoffthelightsandheaterswhenyougooutofaroom?In2040itwillnot
LookingtotheFuture—2040Doyouforgettoturnoffthelightsandheaterswhenyougooutofaroom?In2040itwillnot
GenerationGapAfewyearsago,itwasfashionabletospeakofagenerationgap,adivisionbetweenyoungpeopleandtheir
MobilePhoneandDiseasesAstudybyscientistsinFinlandhasfoundthatmobilephoneradiationcancausechangesinhuman
HowtoEducateChildrenAsEleanorRooseveltoncesaid,“Universalhumanrightsbegininsmallplaces,closetohome.”And
Scientists,whoarenowawareofhownautilusesregulatetheirbuoyancy,havebeenabletodispelerroneousideasaboutthesecre
Theyhadafarbetteryieldthananyotherfarmmilesawayaroundthisyear.
CaribbeanIslandsWhatwouldyouseeifyoutookacruisetotheCaribbeanIslands?Palmtreesandcoconuts(椰子)?Whitebeaches
PleaseFastenYourSeatbeltsSevereturbulence(湍流)cankillaircraftpassengers.Now,intestflightsovertheRockyMountain
随机试题
外国新闻事业诞生的基本历史背景是()
经软骨内化骨形成的原骨痂是
下列药物中属于镇痛性化学保定药的是
对于内分泌功能减退性疾病,目前比较普遍使用的替代治疗方法是给予()。
某寒冷地区大型水闸工程共18孔,每孔净宽10.0m,其中闸室为两孔一联,每联底板顺水流方向长与垂直水流方向宽均为22.7m,底板厚1.8m。交通桥采用预制“T”型梁板结构;检修桥为现浇板式结构,板厚0.35m。各部位混凝土设计强度等级分别为:闸底板
汇总记账凭证账务处理程序的缺点是按每一贷方科目编制汇总转账凭证,不利于会计核算的日常分工,当转账凭证较多时,编制汇总转账凭证的工作量较大。()
下列各项关于附等待期的股份支付会计处理的表述中,正确的有()。
测验法、调查法和观察法是评价时收集信息资料的方法,关于它们的阐述最恰当的是()。
简述法律规则的逻辑结构。
机体在局部疲劳时更适用于发展运动员的()
最新回复
(
0
)