32. According to the passage, sailors 4000 years ago
(A) were able to calculate their speed
(B) were dependent on starts to tell time.
(C) never ventured away from the coastline.
(D)used the compass to navigate.
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統計: A(12), B(10), C(3), D(7), E(0) #1184337
統計: A(12), B(10), C(3), D(7), E(0) #1184337