当发动机火警按钮被松出时，下列哪种说法正确？（）
A. 引气活门和PACK活门是关闭
B. 燃油交输活门关闭
C. 气源交输活门关闭
D. 传输活门关闭
项目法人可对优质工程项目有突出贡献的（）给予适当奖励。
A. 分包
B. 个人
C. 参建单位
D. 总包
When hoisting a boat on gravity type davits using an electric motor driven winch，the davit arms should be brought up（）.
A. to their final position with the winch operating at slow speed
B. to the bar stop，and then hand cranked to their final position
C. until just before they make contact with the limit switch，and then hand cranked to their final position
D. to the embarkation deck，and then hand cranked to their final positio
设备腐蚀调查的适用范围是什么？设备腐蚀调查宏观检查的重点部位有哪些？检查内容是什么？
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