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
2023-10-19
41
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/3112543.html
相关试题推荐
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffect
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffect
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffect
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffect
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffect
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteffect
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteff
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteff
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteff
Inalittle-knownpartofthecounter-terrorismworld,oneofthemosteff
随机试题
Thechancesofarepetitionoftheseunfortunateeventsare______indeed.A、distan
PoorpeoplehaveIQ’ssignificantlylowerthanthoseofrichpeople.The【S1】
AllthefollowingsentencescontainanadverbialclauseoftimeEXCEPTA、Peterca
张性裂隙通常具有以下特征:( )A.平行成组出现 B.裂隙面平直光滑 C.
商业银行开展金融创新活动,应坚持()的原则,遵守法律、行政法规和规章的规
关于房地产经纪机构品牌管理的特点,下列表述中不正确的是( )。A.品牌管理的目
“阴胜则阳病,阳胜则阴病”说明了阴阳之间的哪种关系A.阴阳交感 B.对立制约
牙槽突骨折结扎固定时间是A.8周 B.6周 C.4工6周 D.2周 E.
关于情绪和情感的陈述,下列陈述正确的是()。A.情绪是与有机体的生理需要能否被
2013-15.某企业拟建一个对环境可能造成重大影响的项目。根据《中华人民共和国
最新回复
(
0
)