首页
登录
职称英语
In a little-known part of the counter-terrorism world, one of the most eff
In a little-known part of the counter-terrorism world, one of the most eff
游客
2024-08-19
5
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] 【C4】
选项
答案
dropped
解析
本题考查动词的过去分词充当后置定语的用法。此处的drop 与instrumentation构成被动结构,故答案是dropped。
转载请注明原文地址:https://tihaiku.com/zcyy/3727109.html
相关试题推荐
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteff
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteff
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteff
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteff
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffec
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffec
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffec
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffec
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffec
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffec
随机试题
[originaltext]M:Excuseme,couldyoupleasetellmehowtogettothetennisc
TenBadListeningHabitsI.CallingtheSubjectDull—Goodlistenerswillhunt
[originaltext] Twentytouristswereamongthevictimsofanattackbyagunman
下图示意北半球夏季4个气旋的移动路径。读图, 气旋()。A.①给南亚地区带
油浸电压互感器本体分压电容电容量不合格(CVT)试验数据严重超标,无法继续运行属
质量是一个企业生存和发展的基石。质量水平的高低,反映了一个企业的素质。要提高产品
传导慢痛的外周神经纤维主要是
2013年9月9日.由中央电视台和光明日报出版社联合主办的“寻找最美乡村教师”
从交易结构上看,可以将互换交易视为一系列()的组合。A.期货交易 B.现
A国和我国签订了相互给予船舶税费最惠国待遇条款的协议,2022年2月,自A国港口
最新回复
(
0
)