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
2023-01-16
35
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 U.S. 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 man-made 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.
【C7】
选项
答案
operating
解析
本题考查动词的现在分词作伴随状语的用法。根据上下文可知,该句主语指的是哺乳动物,且与operate构成主动关系,故答案是operating。
转载请注明原文地址:https://kaotiyun.com/show/CLSD777K
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
LongbeforeManlivedontheEarth,therewerefishes,reptiles,birds,insects,andsomemammals.Althoughsomeoftheseanimal
FieldsacrossEuropearecontaminatedwithdangerouslevelsoftheantibioticsgiventofarmanimals.Thedrugs,whichareinma
FieldsacrossEuropearecontaminatedwithdangerouslevelsoftheantibioticsgiventofarmanimals.Thedrugs,whichareinma
Thepurposeofsystemsdesignistospecifya(n)____①____,whichdefinesthetechnologiestobeusedtobuildtheproposedinfor
Symmetric-keycryptosystemsusethe________keyforencryptionanddecryptionofamessage,thoughamessageorgroupofmessage
Symmetric-keycryptosystemsusethe________keyforencryptionanddecryptionofamessage,thoughamessageorgroupofmessage
Daniel:Goodmorning,madam.I’mDaniel.I’mapplyingforthepositionofmanager.Madam:Sitdown,please.【K1】________
Motivationisthehardestofallmanagerialtasks,anditis________toexpectasinglememo,nomatterhowwellcrafted,tohave
InthecontemporaryWesternworld,rapidlychangingstylescatertoadesirefor_____andindividualism.
随机试题
行政复议参加人包括()。
素质教育的重点是培养学生的()。
函数f(x)=(x2-1)3+1,在x=1处()
关于心脏瓣膜病,以下哪一种说法不正确
工业分部工程质量验收的结论由()填写。
下列关于战略选择过程的说法中错误的是()。
教育文献一般可分为三个等级,下列属于一次文献的是()。
以下程序的输出结果是()。#inc1ude#defineF(x)2.84+x#definew(y)printf("%d",(int)(y))#defineP(y)w(y)main()
打开工作簿文件:Exc.xlsx,对工作表“图书销售情况表”内数据清单的内容按主要关键字“季度”的升序次序和次要关键字“经销部门”的降序次序进行排序,对排序后的数据进行高级筛选(条件区域设在A46:F47单元格区域,将筛选条件写入条件区域的对应列上。),条
CreativeDestructionofHigherEducationA)Highereducationisoneofthegreatsuccessesofthewelfarecountry.Whatwasonce
最新回复
(
0
)