In a new study of African elephants，researchers have four distinct characters that are among a group.
A. convinced B. identified C. differed D. existed
In a new study of African elephants，researchers have four distinct characters that are among a group.
A. convinced B. identified C. differed D. existed
B 考查动词辨析。句意：在一项对非洲象的新研究中，研究人员辨别出大象群落中四种截然不同的性格。identify辨别；辨认，符合句意。