小型内燃叉车的传动装置主要由摩擦式离合器、()、驱动桥等部件组成。
参考答案:齿轮变速箱
根据2005国际心肺复苏指南,为了保证有效的按压,双人CPR时轮换按压者的频率和交换时间分别是
A.1分钟轮换,小于5sB.2分钟轮换,小于5sC.5分钟轮换,小于10sD.2分钟轮换,小于10sE.5分钟轮换,小于5s
All of the following are parts of direct and manage project execution except ().
A.identifying changes
B.using a work breakdown structure
C.implementing corrective actions
D.setting up a project control system