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  3. A patrol team of sea lions and dolphins featured in a large-scale military e

A patrol team of sea lions and dolphins featured in a large-scale military e

游客2023-12-27  10
问题     A patrol team of sea lions and dolphins featured in a large-scale military exercises being conducted by the U. S. and its allies in the Pacific Ocean. The machine【C1】______ took part in simulated mine recovery and mine detection missions during the biennial Rim of the Pacific Exercise (RIMPAC) war games. The【C2】______ started on June 19 and will run【C3】______ Friday.
    "There are a number of mechanical systems that work in those areas.【C4】______high-tech gadgets deployed by the military can’t【C5】______the natural skills of dolphins and lions," said Tom Lapuzza, spokesman for UN Navy’s Marine Mammal Program. Sea lions have "incredible good underwater【C6】______" and can dive down to 300 meters to catch a recovery line to a mine, he said. Dolphins use sonar to【C7】______ mine.
    Human beings have a long【C8】______ of training animals to join the military. Horses have been the most widely-used animals【C9】______ the recorded history of【C10】______. In early times, horses were used to【C11】______ chariots or to【C12】______armored forces. With the development of modern weapons and motorized【C13】______, the use of horses for military purposes fell into【C14】______.【C15】______, horses were still used【C16】______ by the German army during World War II for transporting【C17】______and equipment, including artillery.
    During World War II, 【C18】______with explosives strapped to their backs were used as anti-tank weapons. In other【C19】______, they were used for detecting mines. Some dogs were also used as messengers.
    Other animals have also【C20】______ in the military. Recorded history shows the use of elephants for military purposes as early as 1,100 B. C. . They were employed during World War II by both the Japanese army and the Allies. [br] 【C18】
选项 A、chickens
B、cats
C、horses
D、dogs
答案 D
解析 结构搭配此处缺少一个作主语的名词，根据下文判断此处应指D。
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