温病发热，微恶风寒，咳嗽，胸闷，身发红疹，舌绛，苔薄白，脉细数。其病变阶段是（）
参考答案：卫营同病
曲轴位臵传感器可分为磁脉冲式、光电式和霍尔式三大类。（）
As an operating system repeatedly allocates and frees storage space, many physically separated unused areas appear. This phenomenon is called __( )__.
A．fragmentation
B．compaction
C．swapping
D．paging
