Washoe could make signs to communicate __________. 查看
正确答案,材料
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Washoe could make signs to communicate __________. 查看材料
A.if the Gardeners"argument was sound
B.because she was cleverer than other chimps
C.when she wanted to eat
D.while she was at a research center in Ellensburg
E.because she could use sign language to ask for fruits
F.while Washoe was learning sign language
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