比特误码率（Bit Error Rate，简称BER）是衡量数字通信系统性能的重要指标，它的诞生背景与数字通信技术的发展密切相关 ...

Before going to the tax rates of salaries tax and personal assessment, you may want to know how to calculate the amount of tax you should pay. This article will also tell you the standard rate and ...