22 What is the passage mainly about?
(A) The impact of the motion of the seas
(B) The effects of the moon and the sun on the motion of the seas
(C) The temperature of the seas
(D) The causes of the motion of the seas
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統計: A(15), B(31), C(18), D(108), E(0) #1344757
統計: A(15), B(31), C(18), D(108), E(0) #1344757