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
20
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.unrelatedB.resultsfromC.takesD.fixedE.spendsF.distractedG.completely
A.likeB.depressedC.conflictD.accessingE.beneficialF.highlyG.appealH
A.disgracefulB.imperfectC.holdD.considerationE.approvedF.accordinglyG.naked
(1)Inresponsetomassunemploymentandtheprospectofhavingtoemigrate,anunemployedIrishgraduatehasspent€2,000onam
PASSAGEONEWhichtwomarketsarethemostimportantforHuawei’ssmartphones?
A、Findinganotherdormoncampus.B、Sharingabedwithaclassmate.C、Livingwithafriendforacoupleofdays.D、Sharingapri
PassageOneWhydidthewriterfinallydecidetobuythreeskirts?
Whentheyhadfinishedreading,thechildrenweretoldto________allthepicturebookstheyhadtakenout.
Themanworksatapostoffice.
WhathaveSriLanka’sTamilTigerrebelsadmitted?
随机试题
患者,女性,33岁。反复上腹部疼痛6年,多于每年秋季发生,疼痛多出现于餐前,进餐后可缓解,近日出现黑便,乏力,面色苍白,食欲尚好,体重无减轻。体检:轻度贫血貌,心肺及腹部查体未见明显阳性体征。Hb:100g/L,粪便隐血+++。进一步行哪个检查
药物中毒,其发病类型多为
瘿病之心肝阴虚证治宜
在迈克尔逊干涉仪的一支光路中,放入一片折射率为n的薄膜后,测出两束光的光程差的改变量为两个波长,则薄膜厚度是( )。
简述借款的审计目标。
著有《普通教育学》,并被西方誉为“科学教育学之父”的教育家是()。
根据心理学规律,当学生面对重要考试时,教师应使其紧张和焦虑程度控制在()
可是现在有些人采取一种盲目的态度,不加分析,不辨是非,把一切外来的文化都视为珍品,______,竟五体投地地顶礼膜拜。填入横线上最恰当的是:
关于关键字class和typename,下列表述中正确的是()。
A、Theuser’sposition.B、Thespeedofthesatellites.C、Thedistancetodestination.D、Theinformationtotheearth.A根据录音最后一句“一
最新回复
(
0
)