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
In a little-known part of the counter-terrorism world, one of the most effective detection systems is a 600-pound animal【C1】____
In a little-known part of the counter-terrorism world, one of the most effective detection systems is a 600-pound animal【C1】____
admin
2021-04-02
45
问题
In a little-known part of the counter-terrorism world, one of the most effective detection systems is a 600-pound animal【C1】___________works for about 20 pounds of fish a day.
Since the 1960s, the United States and a handful of other countries have trained dolphins and sea lions to detect sea mines and swimmers,【C2】___________(recover) inert torpedoes(鱼雷) and to test objects used in Naval exercises.
Program officials estimate that the sea lions in the Marine Mammal Program【C3】___________(recover) millions of dollars of U.S.Naval torpedoes and instrumentation【C4】___________(drop) on the sea floor.
The US Navy kept its Marine Mammal Program a secret until the 1990s, and this spring CNN became one of only a handful of media outlets to see firsthand【C5】___________the program works.
The program has trained about 75 Pacific bottlenose dolphins, with natural bio-sonar (生物声呐) that track, better than any manmade device; and 35 California sea lions, with superb underwater eyesight.
Not only do these trained marine mammals track and retrieve millions of dollars in U.S.military equipment, they are also helping to save lives.
The Navy won’t disclose whether the dolphins and sea lions have effectively intercepted(拦截) terrorist【C6】___________ (attempt) to do harm to any U.S.facilities.
"Either way, it serves as a deterrent (遏制的) effect." says Christian Harris, operations supervisor for the program.The mammals can be deployed via C-130 cargo aircraft to perform their missions anywhere in the world within 72 hours.They have been used in exercises from Alaska to Hawaii, 【C7】___________(operate)in great temperature and environmental ranges.They also have the capability to operate off vessels.
Dolphins most recently were deployed in the Iraq war,【C8】_________(perform) mine detection and clearance operations in the Persian Gulf【C9】_________(ensure)safe passage for humanitarian ships【C10】_________(deliver)aid.Some of these Iraq war "veterans" are now back home, tasked with a new mission: guarding nuclear submarines in their homeports of Bremerton, Washington, and Groton, Connecticut.
【C2】
选项
答案
to recover
解析
本题考查动词不定式作目的状语的用法,detect,recover和test是三个并列的动词,其他两个动词都是不定式的形式,故答案为to recover。
转载请注明原文地址:https://kaotiyun.com/show/FZjK777K
本试题收录于:
D类竞赛(专科)题库大学生英语竞赛(NECCS)分类
0
D类竞赛(专科)
大学生英语竞赛(NECCS)
相关试题推荐
A.equipmentB.maintainC.forexampleD.contactE.contrastF.gainedG.natural
A.likeB.depressedC.conflictD.accessingE.beneficialF.highlyG.appealH
Peopletravelinglongdistancesfrequentlyhavetodecidewhethertheywouldprefertogobyland,sea,orair.Hardlycananyon
(1)Moreandmoreyoungathletesaretakingpartinrisky,adventurousactivitiescalled"extremesports",or"X-sports".Itsphi
RichAmericansarewillingtotakeconspicuousconsumptiontonewheightsbyspendingbigbuckstoflyintospace,includingpay
Iwasaddressingasmallgatheringinawomen’sgroupthathadinvitedmentojointhem.Throughouttheeveningonemanhadbeen
Mymother’sparentscamefromHungary,butmygrandfatherwaseducatedinGermany.Itseemshewasabletoholdaconversationi
Themanworksatapostoffice.
Whenisthemanleaving?
Whenisthemanleaving?
随机试题
A.潜在并发症:休克B.有感染的危险与损伤有关C.缺乏保健知识D.排尿异常与损伤有关E.焦虑患者搬动重物后突然左侧下腹痛,放射至大腿内侧、会阴部,有镜下血尿。此患者排在首位的护理诊断是
构成人体的基本物质是
施工质量控制的过程包括()。
一张票面利率为8%、15年期债券的到期收益率为10%,久期为8.05年。如果市场收益率变动25个基点,债券的价格将会变动( )。
上市公司的盈利性会影响股价变动,衡量盈利性最常用的指标有( )。
在德育过程中,有的学生因为对行为规范不理解,认识不到位,常常出现喊口号式的道德表现,只会说,但不理解,导致“言行不一”的情况。对此,教师应从()着手展开德育工作。
新文化运动的基本口号是民主与科学,其中“民主”主要是指
系统实施是信息系统开发期的最后阶段,系统实施阶段的内容包括()。
TCP/IP的互联层采用IP协议,它相当于OSI参考模型中网络层的______。
Peopleconsume200extracaloriesadaywheneatingatarestaurantcomparedtodiningathome,anewstudyhasrevealed.Resear
最新回复
(
0
)