My vessel is healthy and I request free pratique.What does the sentence My vessel is healthy mean?It means;().
A. My ship has been maintained
B. My ship has been painted
C. All my crew members have been vaccinated
D. All my crew members have no quarantinable disease
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中国室内装饰协会规定室内装饰装修工程一般保修期为()年。规定的保修期为()年。
王女士患肺结核在家疗养,但痰中仍疑有结核菌,对其痰液最简便有效的处理方法为()
A. 用锅煮沸
B. 深埋
C. 焚烧
D. 酒精浸泡
E. 洗涤剂浸泡
烘炉期间,保护板上部顶丝是控制保护板上移,烘炉完毕要求磨板平面()炭化室底平面
A. 高于
B. 不高于
C. 相平于
回路事件分组时,将完全按照事件是否重叠来判断,只有时间有重叠才认为是一组事件。
A. 正确
B. 错误