这些绑扎工具必须要再次上紧。（）<br>A:These lashing tools must be tightened again.<br>B:These lashing wires must be tightened again.<br>C:These lashing bars must be secured again.<br>D:These cargo wires must be loosened again.

这些绑扎工具必须要再次上紧。（）
A:These lashing tools must be tightened again.
B:These lashing wires must be tightened again.
C:These lashing bars must be secured again.
D:These cargo wires must be loosened again.

出自：船舶水手证

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