- 搜標(biāo)題
- 搜題干
- 搜選項(xiàng)
單項(xiàng)選擇題
Before wore is commenced（）the officer responsible should ensure that power is shut off and warning notices posted on the bridge and in the machinery spaces.
A.near the ship’s whistle
B.on the funnel
C.in the vicinity of radio aerials
D.near the radar scanner
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