單項(xiàng)選擇題Good anchorage may be obtained anywhere in this water area，the bottom being generally mud and sand，vessel may have（）.

A.good getting ground
B.good holding ground
C.good grabbing ground
D.good handling ground


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1.單項(xiàng)選擇題Geographic range is the maximum distance at which a light may be seen under（）.

A.existing visibility conditions，limited only by the curvature of the Earth
B.perfect visibility conditions，limited only by the curvature of the Earth
C.existing visibility conditions，limited only by the intensity of the light
D.perfect visibility conditions，limited only by interference from background lighting

2.單項(xiàng)選擇題Due to the shape of the sea anchor，the best way to haul it back aboard is by（）.

A.hauling in on the anchor line as you would any anchor
B.getting all hands to assist
C.its trip line
D.cutting the line，as you cannot haul it back in