(1) A fuel heater can use engine bleed air as a source of heat.(2) A fuel heater can use engine lubricating oil as a source of heat.Regarding the above statements,
发布于 2021-02-18 21:51:48
【单选题】 A only No.1 is true. B both No.1 and No.2 are true. C neither No.1 nor No.2 is true.
