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單項選擇題

A latitude line will be obtained by observing a body （）.

A.on the prime vertical
B.on the celestial horizon
C.at lower transit
D.on the Greenwich meridian

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單項選擇題

A lashing used to secure two barges side by side，lashed in an "X" fashion，is called a （）.

A.quarter line
B.back line
C.peg line
D.jockey line

單項選擇題

A lashing used to secure two barges side by side，lashed in an "X" fashion，is called a （）.

A.scissor wire
B.towing wire
C.breast wire
D.cross wire

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