问题
选择题
After years of careful observation in the wild, Jane Goodall was finally able to _____ the social
system of chimps. [ ]
A. carry out
B. work out
C. look out
D. pick out
答案
答案：B
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After years of careful observation in the wild, Jane Goodall was finally able to _____ the social
system of chimps. [ ]
A. carry out
B. work out
C. look out
D. pick out
答案：B