阿摩線上測驗
19. Shift of wind direction in an anticlockwise manner, for example from north to west
(opposite of veering), it is:
(A) Beach (to)
(B) Backing (of wind)
(C) Turn around
(D) Search and rescue
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統計： A(72), B(632), C(71), D(45), E(0) #2883498
統計： A(72), B(632), C(71), D(45), E(0) #2883498
