On most diesel engines, the governor controls the output speed by （）. ["controlling the amount of fuel injected into the cylinders","varying the speed of the turbocharger","adjusting the compression ratio","changing the timing of the fuel injection camshaft"]
人力资源的技能可以分为一般技能和岗位技能。
培训与开发效果可以分为反应、学习、行为、结果四个递进的层次。
Which of the following devices is common to both mechanical and hydraulic governors?（） ["Direct linkage between the ball-head and fuel rack","A servomotor","A compensating device","Flyweight"]
煤气流量的设定值不变时，加减旋塞全部关小1/8，流量自动调节翻板会（） ["开大","关小","不变"]
简述链壶菌、离壶菌的症状。
