A: receive shore-to-ship distress alerting
B: transmit ship-to-shore distress alerting
C: receive message for public correspondence
D: transmit and receive locating signal
举一反三
- 智慧职教: Ships in areas A3 and A4 will transmit, as appropriate_____ ①a ship-to-shore alert by MES or HF DSC ②a ship to- shore alert by satllite EPIRB③a ship-to-ship alert on MF/VHF DSC
- 170. Frequencies specified for MSI should be used by A: authorized coast stations to broadcast MSI B: a ship station to report MSI to a public coast station C: a ship station to transmit distress alert D: authorized coast stations to transmit distress acknowledgement
- VHF Channel 70 can be used for ( ). A: distress and safety purposes B: public correspondence purposes C: ship to ship distress alert D: A, B and C are all correct
- Which three flow-control port states lead to enabled link flow control？ （） A: Receive port： Enabled， Transmit port： Enabled B: Receive port： Enabled， Transmit port： Desired C: Receive port： Enabled， Transmit port： Disabled D: Receive port： Disabled， Transmit port： Desired E: Receive port： Desired， Transmit port： Desired
- 24 For ship to shore distress alerts. you can use ( ) A: INMARSAT MES. EPIRB and DSC B: NAVTEX. NBDF and R/T C: INMARSAT MES. VHF and SART D: EFIRB. DSC and radar
内容
- 0
Among the following functions, ______ is to receive standard input data (that is, input from the keyboard) and return a string. A: eval B: input C: print D: get
- 1
通用同步/异步收发器USART （Universal Synchronous / Asynchronous Receive / Transmit）是MSP430单片机的重要（）。
- 2
Which statement is true of a NAVTEX receiver? A: Reception is not available in Ocean Area I. B: Operates on 518 kHz. C: One must transmit a request signal to initialize the coastal station. D: Receives distress transmission directly from ships operating in the same Ocean Area.
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What should be made known in the lists of coast and ship stations? A: the services of the stations open to public correspondence B: the information on charging C: what kind of the public correspondence D: A and B
- 4
Which statement is right： A: Both message queue and unnamed pipe can send/receive messages between any two processes. B: Both message queue and unnamed pipe can send /receive messages with the specified type. C: Both message queue and named pipe can send/receive messages between any two processes. D: Both message queue and named pipe can send /receive messages with the specified type.