阿摩線上測驗
41. What does “a crucial time” in the last paragraph refer to?
(A) When the vessel hits a flat.
(B) When the channel is not deep enough.
(C) When there is a collision of two ships.
(D) When a ship is waiting to enter the port.
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統計： A(12), B(16), C(26), D(54), E(0) #3362519
統計： A(12), B(16), C(26), D(54), E(0) #3362519
