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While working in the engine room, you hear seven short blasts followed by one long blast on the ships whistle, supplemented by the same signal on the general alarm bellsYou should ().
市场预测按预测的经济活动范围不同,可分为宏观预测和()
造成空气污染的最主要原因是()
能化瘀止血、消肿定痛的药是()
提高脑脊液标本中结核分支杆菌的阳性检出率的方法是()
脊柱损伤者应卧硬板床休息()
男,65岁,上腹部无规律性隐痛2个月,因饮酒后呕咖啡样物150ml,柏油便300ml来诊,无肝病史。查体:血压90/60mmHg,脉搏100次/分,血红蛋白90g/L,上腹部轻度压痛,肝脾肋下未触及,其止血措施最好选择()
必须严格执行国务院卫生行政部门规定的管理制度、操作规程,防止传染病的医源性感染和致病性微生物的扩散等的单位是()
怎样判断控制台雷达测速表无显示的故障?
班组台帐按照什么原则进行管理?()
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The safe working load of the derrick is ().
The safe working load of the derrick is 5 tons.()
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It's not safe()in the street.
It's not safe()in the street.
Is it safe()a rocket?