薪酬水平及其外部竞争性决策的类型有（）。
参考答案：领先型薪酬政策，跟随型薪酬策略，滞后薪酬政策，混合合型薪酬策略
With more forests being destroyed, huge quantities of good earth _______ each year.
A．is washing away
B．is being washed away
C．are washing away
D．are being washed away
冲击试验时，嵌入式灯具的易碎部件的冲击能量为（）
A.0.2Nm
B.0.35Nm
C.0.45Nm
D.0.5Nm
