首页
登录
职称英语
In a little-known part of the counter-terrorism world, one of the most effec
In a little-known part of the counter-terrorism world, one of the most effec
游客
2024-08-19
12
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 eguipment, 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 Irag 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] 【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://tihaiku.com/zcyy/3726636.html
相关试题推荐
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffec
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffec
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffec
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffec
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
Whatdevelopmentcausedadeclineintheuseofrailroads?[originaltext]Att
PresidentBushandthe9/11Attacks
Iwantthelightfittingstobe______theceiling.A、flatonB、flushwithC、para
TheLureofaBigCityVacationFromtheTower
TheBeautyAdvantage[A]MostofushaveheardthestoryofDebrahle
A.π:2 B.2π:5 C.3π:2 D.2π:3
下列不属于客户信用分析的5Ps分析系统的是()。[2015年5月真题]A.定量模
特殊巡视是由运行人员对GIS设备在恶劣气候、地质灾害、特殊运行方式下进行的巡视
关于异地发布药品广告说法正确的是A.当提交《药品广告审查表》复印件 B.当提交
关于工程项目后评价的说法,正确的有()。A.项目后评价应在竣工验收阶段进行
最新回复
(
0
)