30. Which of the following statements is NOT true?
(A) The first people in the Americas probably traveled through a land bridge across the Bering Strait.
(B) It is difficult for archeologists to change their attitude and adjust to a new theory.
(C) Ancient people must have been adventurous while making their migration.
(D) It is natural for archeologists to challenge an old theory with new evidence.

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統計: A(12), B(59), C(14), D(20), E(0) #810268

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