rs.close语句的作用是 ______ 。Office ______ is the application of the computer and communications technology to improve the productivity of office workers．为了在Internet上浏览网页,需要在客户端安装浏
is an error detection code that most data communication networks use。要在页面中设置复选框,可将type属性设置为（）。CRC#
Manchester Code
Huffman Code
4B/5B Coderadio
option
check box#
check解析：循环冗
