37. The author implies that people used to believe the continents were __________.
(A) frozen chunks of ice
(B) rotating masses of rock
(C) hardened crusts of lava
(D) immobile bodies of land
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統計: A(2), B(6), C(8), D(15), E(0) #1272707
統計: A(2), B(6), C(8), D(15), E(0) #1272707