题目内容

Today, dogs may be employed to sniff out illegal substances in school lockers or earthquake victims buried beneath the rubble of a ____(倒塌) building or highway.

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The answer: career-training. Trainers teach the animals to obey their instructions through a process called ____(训练) .

At “Helping Hands Monkey Helpers for the ____(伤残的),” capuchin monkeys are trained twice before being teamed with a disabled human.

For example, a monkey may be trained to scratch an itch, or slip a ____(软盘) into a computer drive.

Monkeys are perfect ____(帮手) for quadriplegics, people paralyzed from the neck down who are unable to use their own hands (and legs).

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