[单选题]为了保证船用四冲程柴油机曲轴停在任何位置均能可靠地用压缩空气启动，则最少气缸数应不少于( )。

正确答案 ：C

6个

[单选题]Which of the following problems can occur if you continually fail to drain off condensate from a starting air receiver?

正确答案 ：A

Corrosion and eventual failure of the tank

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