VOIP的三种实现形式是PC-to-PC、PC-to-Phone、______。

Which of the following is NOT a form of wage erosion

Which of the following figures is NOT true according to the passage

A．17% of the laid-off workers are settling for less pay.
B．Median weekly earnings have fell by 1.5% since January.
C．50,000 workers have lost their jobs since January.
D．Historically 8.5% of the laid-off workers would settle for less pay.