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  3. The most famous case of an animal said to be capable of counting is that of

The most famous case of an animal said to be capable of counting is that of

游客2023-07-23  55
问题     The most famous case of an animal said to be capable of counting is that of a horse in Germany called Clever Hans. The episode【B1】______at the beginning of the present century. The horse’s owner【B2】______that animals can think and reason as we can and that this【B3】______can be brought out by training the animals. He trained Clever Hans to give the answers to【B4】______of arithmetic; the horse gave the【B5】______answer by tapping the right number of times with its forefoot.
    The animals gave the correct answers not only to【B6】______but also to other processes of arithmetic, including【B7】______fraction to decimals. It gave the right answers too when the questions were not spoken but【B8】______to it written on a card.
    【B9】______. The committee, after a careful investigation, found【B10】______, and that he b/ad not purposely trained his horse to stop tapping, and so to give a correct answer, by giving it a slight clue as is done with performing circus(马戏团)animals. The absence of such trickery(诡计)was proven by the fact【B11】______. [br] 【B1】
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