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單項選擇題

To increase the distance to the vessel ahead by reducing one’s own speed means（）.

A.fall back
B.keep low speed
C.running after
D.drop back

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單項選擇題

To run a vessel upon a beach to prevent its sinking in deep water means（）.

A.ground
B.run aground
C.beach (to)
D.strand

單項選擇題

To secure a vessel in a particular place by means of chains or ropes made frast to the shore, to anchors, or to anchored mooring buoys, or to ride with both anchors down defines（）.

A.To moor
B.to berth
C.to anchor
D.to ride at anchor