题目5单选题
下列主要用于隧道内和室外路面覆盖的天线是()A. 吸顶天线 <img src="https://p.ananas.chaoxing.com/star3/origin/2ee8f0f75598eca25720564ae0074a8b.png">B. 板式天线 <img src="https://p.ananas.chaoxing.com/star3/origin/96cf6d2009342c3f20991a58e6ea0ed9.png">C. 全向天线 <img src="https://p.ananas.chaoxing.com/star3/origin/066a720c60b2da68d03ea6467b7058c3.png">D. 八木天线 <img src="https://p.ananas.chaoxing.com/star3/origin/4f6dce19a8a0b7c6eb6cae6404e84c8a.png">