How should you warm up a diesel engine that has not been run for some time? （）
举一反三
- The diesel engine must be started before it can run by it self For this purpose （） has to be used.
- Before starting a diesel engine that has an engine driven lube oil pump， the engineer should （）.
- My money (), Could you please lend me some A: has run out of B: has run out C: was run out of D: has been run out
- If you are unable to stop a diesel engine by any other means，you should（）.
- If a diesel engine is difficult to start and operates with the engine temperatures lower than normal， you should suspect that the （）.