The perforated，elevated bottom of the chain locker，which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains，is called a（）.<br>A:cradle<br>B:draft<br>C:harping<br>D:manger

The perforated，elevated bottom of the chain locker，which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains，is called a（）.
A:cradle
B:draft
C:harping
D:manger

出自：海船船员证

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