單項(xiàng)選擇題

水手長(zhǎng),我們?yōu)槭裁匆_(kāi)艙蓋?()

A. Bosun, why do we open hatch covers?
B. Officer, why do we open hatch covers?
C. Bosun, why do we close hatch covers?
D. Bosun, why do we open hatches?

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