正确答案: C

二氧化碳和少部分氮气

题目：气胀式救生筏充气所使用的气体应是（）

解析：C

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举一反三的答案和解析：

[单选题]Fuel droplets injected into a diesel engine cylinder must have adequate penetration to ____.

thoroughly utilize the air charge

[单选题]何种救生设备是船上最简便的救生工具：

救生衣

[单选题]One of the most common causes of reduction gear failure is gear wear caused by scoring as a result of

an inadequate lube oil film

[单选题]干舷

freeboard

[单选题]对感染伤口处理的主要原则______。

使局部伤口得到充分而通畅的引流

[单选题]A thrust bearing is used with a propulsion diesel engine to ____.

control axial movement of the crankshaft