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当水位计无水位显示时,判断锅炉缺水程度首先应该进行()。
为避免农药引起的食物中毒,在蔬菜粗加工时以食品洗涤剂(洗洁精)溶液浸泡()分钟后再冲净,烹调前再经烫泡1分钟,可有效去除蔬菜表面的大部分农药。
玛雅文化是如何从地球上突然消失始终是个难解的迷。(all of a sudden)
吸收入体内的金属汞主要分布在()
简述我国社会主义法律体系的基本内容。
太阳的雅称,下面不属于黄昏的是()
办理外币储蓄业务,存款本金和利息可以用外币支付,也可以按当日外汇汇率折计为人民币支付。()
对大多数抗生素不敏感,脓液有特殊恶臭的是()。
可溶性养分 soluble nutrient
《夏热冬冷地区居住建筑节能设计标准》对窗墙比有所限制,其主要原因是()。
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Are you the sailor on duty?()
Are you the duty sailor?()
As a duty sailor, he should ().
The sailor on duty is ()the derrick now.
The sailor should ()(报告)it to the duty officer.
As a sailor on duty you must know how to ()(调整)derricks.
Which of the following is not the duty of the sailor on gangway watch? ()
Mr.Jones was tired , he will()over his duty of look out to another sailor.
Mr.Jones was tired,he will()over his duty of look out to another sailor.
As a sailor on duty you must know how to adjust derrick.()