题目内容:
Washoe could make signs to communicate __________.
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
参考答案:【答案仅供学习,请勿对照自行用药等】
答案解析: