锅炉水压试验升压时，压力上升应均匀而缓慢地进行，升压速度以每分钟不超过（）Mpa为宜
用于压力容器气压试验的介质有（） ["氮气","空气","一氧化碳","二氧化碳","其他惰性气体"]
决定个人旅游需求的因素有哪些？
Vowels are formed mainly by the position of the tongue and, secondarily, by the shape of the lips and movement of the jaw.（）
油类记录簿中，海事管理机关检查的核心内容是（） ["残油的数量及去向","润滑油的加装","燃油的加装","排放机舱污水的起止时间"]
GB
