首页
登录
职称英语
In a little-known part of the counter-terrorism world, one of the most effect
In a little-known part of the counter-terrorism world, one of the most effect
游客
2023-10-20
32
管理
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. [br] 【C8】
选项
答案
performing
解析
本题考查动词的现在分词作伴随状语的用法。主语与perform构成主动关系,故答案是performing。
转载请注明原文地址:https://tihaiku.com/zcyy/3113251.html
相关试题推荐
A.dataB.getaccustomedC.effectD.spared
A.dataB.getaccustomedC.effectD.spared
A.dataB.getaccustomedC.effectD.spared
A.dataB.getaccustomedC.effectD.spared
(1)AUniversityofLeicesterteamtestedtheeffectofregularswimmingsess
PassageTwo[br]AccordingtoRoyF.Baumeister’sfinding,what’sthebadeffect
EffectiveAssignmentsUsingLibraryandInternetRes
EffectiveAssignmentsUsingLibraryandInternetRes
EffectiveAssignmentsUsingLibraryandInternetRes
EffectiveAssignmentsUsingLibraryandInternetRes
随机试题
PassageOneTheteachingofhistoryshouldn’tbeneglectedinscientificeducatio
[originaltext]Currentstudiesshowthatwhatgoesonlabelsisanimportant
LatinAmericanandChineseofficialshaveopenedtwodaysoftalksontradea
Youarerequiredtowritealettercontainingarequestforafavoraccordingto
[originaltext]W:ABCRestaurant,canIhelpyou?M:Hi,couldyoutellmewhat
英国十分重视工程风险评估,每个工地都要填写相应等风险评估表格,并有工地安全评估说
对病例对照研究资料进行分层分析的目的是A.控制选择偏倚 B.提高资料的利用率
政府采用财政补贴、税收、金融、采购、工资、就业等经济手段,通过影响各地区和企业的
并联管道1、2.如图20所示。两管的直径相同,沿程阻力系数相同,长度L2=3L1
最新回复
(
0
)