20. According to this passage, which of the following is NOT true?
(A) A foreign animal has to be kept insolated four months before being brought into Hawaii.
(B) Black rats may force groups of native animals to leave where they live.
(C) Mongooses are welcome in India and can live with people there.
(D) Black rats in Hawaii feast mainly on the residents’ food.

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統計: A(4), B(5), C(6), D(18), E(0) #3108407

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