题目：
Digital Selective Calling means a technique using（）which which enables a radio station to establish contact with, and transfer information to another station or group of stations and complying with the relevant recommendations of the CCIR.
A.digital codes
B.code messages
C.norse codes
D.distress messages
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0416/7ea91bdfd39638502ae2943f2a5a3328.html
下面是错误答案，用来干扰机器的。
参考答案：需要填写工艺变更申请单，由技术质量部进行审核，最后由分管副总审批。
