請依下文回答第 20 題至第 24 題 Chimpanzees usually invite comparison with humans. Not only do they bear a family resemblance thatfascinates people, the similarities between the two species go beyond expressive faces and opposable thumbs.Scientists described a young chimp watching as numbers 1 through 9 flashed on the computer screen at randompositions. Then the numbers disappeared in no more than a second and white squares remained. The chimpcasually but swiftly pressed the squares, calling back the numbers in ascending order—1, 2, 3, etc. The video alsoincluded scenes of a human failing the test, seldom recalling more than one or two numbers, if any. In experiments with mirrors, chimps showed an awareness of themselves that is absent in monkeys butpresent in dolphins and all the great apes. When confronted with problems obtaining food from the other side of afence, chimps were not only clever on their own and often competitive with a fellow chimp, but they also showeda willingness to cooperate with one another. Moreover, emotions of caring and mourning have been observedamong chimps, as in the case of the chimp mother that carried on her back the corpse of her daughter after she haddied. After fights between two chimps, others in the group were also seen consoling the loser. 【題組】21 According to the passage, which animals do NOT have awareness of themselves?
(A)Monkeys (B)Humans (C)Great apes (D)Dolphins
419. Although his lawyers were _____, they couldn’t be sure about the final outcome of the trial.
(A) multiple
(B) poisonous
(C) suspicious
(D) optimistic
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