判断题:天线是“发射或接收系统的一部分,为发射或接收电磁波而设计”,所以收天线和发天线不同的,不宜在同一根天线上实现收发共用。() 题目分类:通信工程师 题目类型:判断题 查看权限:VIP 题目内容: 天线是“发射或接收系统的一部分,为发射或接收电磁波而设计”,所以收天线和发天线不同的,不宜在同一根天线上实现收发共用。()A.正确B.错误 参考答案:
In the 20th century the planet's population'doubled twice.It will not double eve In the 20th century the planet's population'doubled twice.It will not double even once in the 1 cent 分类:通信工程师 题型:判断题 查看答案
In the 20th century the planet's population'doubled twice.It will not double eve In the 20th century the planet's population'doubled twice.It will not double even once in the 1 cent 分类:通信工程师 题型:判断题 查看答案