智慧职教: Which of the following HF frequencies is internationally allocated for use for transmitting NAVTEX type broadcasts?
举一反三
- Which of the following MF frequencies is internationally allocated for use for transmitting NEVTEX-type broadcasts? A: 518 kHz using FEC mode. B: 4. 209. 5 kHz using FE mode. C: 486 kHz using FBC mode in China. D: All of the above.
- 48 .which of the following equipments can not be used to receive Maritime Safety information. A: HF NBDP B: NAVTEX C: EGC receiver D: GPS receivers
- . Which of the following frequencies is as international distress and safety frequencies on MF for radio telephone? A: 2187.5 kHz B: 2174.5 kHz C: 2182kHz D: 2177. OkHz
- Which of the following use a metaphor?
- 智慧职教: Which of the following is not the duty of a receptionist?