题目内容:
Allen and Beatrice Gardener managed to communicate with the chimpanzee by______________
A.training the chimpanzee to learn human language m an entirely new method B.creating a language both man and the chimpanzee were able to use
C.using animal" s vocal language which the chimpanzee was able to understand
D.learning the chimpanzee' s language with an entirely new approach
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