题目内容
(请给出正确答案)
[主观题]
In this port,it is regulated that______will be broadcast every one hour on VHF Channel 6.A
In this port,it is regulated that______will be broadcast every one hour on VHF Channel 6.
A.VHF News
B.Channel Rules
C.Visibility Time
D.Navigational Warnings
![](https://lstatic.shangxueba.com/sxbcn/h5/images/tips_org.png)