50. Where in the passage does the author mention the rotation of the Earth?
(A) Line 1-4
(B) Line 5-6
(C) Line 8-10
(D) Line 11-13
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統計: A(11), B(134), C(49), D(19), E(0) #2022726
統計: A(11), B(134), C(49), D(19), E(0) #2022726