问题描述：
[单选]
The fourth engineer accompanied by the workers on oil barge measures the oil levels， temperature and（）in the tanks．
A．tank table
B．trim
C．water contents
D．oil pressure
参考答案：查看无
答案解析：无
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答案解析：无
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上一篇：The fresh air coming in through the inner air ports， is compressed by（）to a higher pressure．
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