阿摩線上測驗
19 What is the passage mainly about?
(A) The formation of the global ocean currents.
(B) The latest scientific discovery of rogue waves.
(C) Unexplained phenomena around the globe.
(D) Mysterious disappearances of ships and aircraft.
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統計： A(23), B(212), C(48), D(69), E(0) #1427631
統計： A(23), B(212), C(48), D(69), E(0) #1427631
