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單項選擇題

Second Officer, give one （）(長聲).

A. blast
B. short blast
C. prolonged blast
D. prolonged blasts

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單項選擇題

Where do you post your （）(火勢控制圖)?

A. fire control plan
B. fire control
C. fire plan
D. fire-fighting plan

單項選擇題

Send a fire （）(火勢探測員) to see the situation .

A.detect
B.detector
C.watch
D.inspector