门店在接到主管部门价格调整通知后，首先在POS机系统上进行（），然后在规定时间暂停销售，尽快更换新的价格标签并恢复正常销售。
参考答案：通讯确认
图示三个振动系统的自由振动圆频率的关系为()。
A．ωna=ωnb，ωna≠ωnc
B．ωna=ωnb=ωnc
C．ωna=ωnc，ωna≠ωnb
D．ωnc=ωnb，ωna≠ωnb
The ideal college would be a kind of educational retreat in which you could try to find yourself; find out what you like and want; what you are and are not good at.
