你可能感興趣的試題

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

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

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你可能感興趣的試題

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

Geographic range is the maximum distance at which a light may be seen under（）.

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