[单选] On most diesel engines, the governor controls the output speed by （）.
A . controlling the amount of fuel injected into the cylinders B . varying the speed of the turbocharger C . adjusting the compression ratio D . changing the timing of the fuel injection camshaft
受氯气及碱液伤害的急救措施有哪些？
EXCEPT when suffering from a head or chest injury a patient in shock should be placed in which position?（）. Head up and feet down。 Head down and feet up。 Flat on back with head and feet elevated。 Arms above the head。
在应用层协议中HTTP通讯缺省端口是（）。 TCP 80。 TCP 60。 TCP 90。 TCP 70。
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。
人力资源开发与管理的使命是什么？
On most diesel engines, the governor controls the output speed by （）.
