The camshaft on a four-stroke/cycle diesel engine provides a means to operate the （）.<br>A:fuel injectors<br>B:exhaust valves<br>C:intake valves<br>D:all of the above

The camshaft on a four-stroke/cycle diesel engine provides a means to operate the （）.
A:fuel injectors
B:exhaust valves
C:intake valves
D:all of the above

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