Paragraph 4 __________ 查看材料A.Reason why not many sc
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Paragraph 4 __________ 查看材料
A.Reason why not many scientists carry out this research nowdays
B.Report about washoe"s progress in learning sign language
C.General information about washoe
D.The Gardeners" contributions recognized
E.Debate on chimps" intelligence
F.Washoe"s love for three young chimps
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