Which of the following firing order may be used for a 6-cylinder engine? ( )
A.1-2-3-4-5-6
B.1-2-3-6-5-4
C.1-5-3-6-2-4
D.1-3-4-5-6-2
正确答案：C解析：发动机发火次序的设置原则是“应尽量避免相邻两个气缸连续发火”。
Which of the following firing order may be used for a 6-cylinder engine? ( )
A.1-2-3-4-5-6
B.1-2-3-6-5-4
C.1-5-3-6-2-4
D.1-3-4-5-6-2
正确答案：C解析：发动机发火次序的设置原则是“应尽量避免相邻两个气缸连续发火”。
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