單項選擇題

作為一名值班水手，你必須懂得如何調(diào)整吊桿。（）

A. As an officer on duty, you must know how to adjust derricks.
B. As a sailor on duty, you must know how to adjust derricks.
C. As a sailor on duty, you must know how to operate cranes.
D. As an officer on duty, you must know how to operate cranes.

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單項選擇題

很多船上在每個艙口處都有兩個吊桿及兩臺起貨機。（）

A. Many ships have two derricks at each hatch.
B. Many ships have two winches at each hatch.
C. Many ships have two derricks and two winches at each hatch.
D. Many ships have two derricks and two winches at each hatch cover.

單項選擇題

重吊桿用于吊大的重件。（）

A. Heavy derrick is used for lifting large heavy cargo.
B. Derrick is used for lifting large heavy cargo.
C. Heavy derrick is used for lifting dry bulk cargo.
D. Derrick is used for lifting dry bulk cargo.

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作為一名值班水手，你必須懂得如何調(diào)整吊桿。（）

你可能感興趣的試題

很多船上在每個艙口處都有兩個吊桿及兩臺起貨機。（）

重吊桿用于吊大的重件。（）

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作為一名值班水手，你必須懂得如何調(diào)整吊桿。（）

重吊桿用于吊大的重件。（）