International distress signal in VHF calling for help is________.
A、Help,Help,Help
B、Mayday,Mayday,Mayday
C、Save,Save,Save
D、Rescue,Rescue,Rescue
发布时间：2025-10-03 20:15:51
请在 下方输入 要搜索的题目：
推荐参考答案 (
由 题搜搜 官方老师解答 )
答案：正确答案：B
相关试题
- 1.International distress signal in VHF calling for help is________.
- 2.Which signal is recognized as a distress signal?
- 3.Tom is________.(同上) ______ _______ Tom _______?
- 4.signal
- 5. The TV is________.(划线提问)_____ _____ the TV?
- 6.signal peptide
- 7.signal generator
- 8.digital signal
- 9.Signal spot
- 10.ER retention signal
