【单选题】406 MHz EPIRB 输出功率(50Ω负载)为( )。
【单选题】In Macbeth , why does Macbeth decide to kill Banquo and his son?
A.
The prophecy says Banquo’s decedents would be the future kings.
B.
The witches say Banquo would kill Macbeth.
C.
The prophecy says Banquo would be future king of Scotland.
【单选题】以下涉及406 MHz EPIRB描述正确的是( ) 。
A.
406 MHz EPIRB启动后,每50 s发送一次持续时间约0.5 s,输出功率为5 W的含有数字编 码信息的射频脉冲信号 :
B.
406 MHz EPIRB启动后,每50 3发送一次持续时间约0.5 s,输出功率为50 W的含有数字 编码信息的射频脉冲信号
C.
406 MHz EPIRB启动后,每50 s发送一次持续时间约0.2 s,输出功率为5 W的含有数字编 码信息的射频脉冲信号
D.
406 MHz EPIRB启动后,每5 s发送一次持续时间约0_5 s,输出功率为5 W的含有数字编 码信息的射频脉冲信号
【单选题】In Macbeth , why does Macbeth decide to kill Banquo and his son?
A.
The prophecy says Banquo’s decedents would be the future kings.
B.
The witches say Banquo would kill Macbeth.
C.
The prophecy says Banquo would be future king of Scotland.
【单选题】Macduff is Macbeth's ( ).
【单选题】Which of the following is Not True about "Macbeth"?
A.
"Macbeth" is Shakespeare's shortest tragedy.
B.
The "tomorrow, tomorrow and tomorrow" speech shows the sense of meaningess that can come to someone who has betrayed himeself.
C.
The "tomorrow, tomorrow and tomorrow" speech tells us that life is meaningless.
D.
"Macbeth" is a play about individuals, about people and about the fate of a nation, Scotland.
【判断题】优质铁观音是“天、地、人、种”四个因素的完美统一。
【单选题】存储器连续读写过程中进行一次完整的读写操作所需的全部时间,即CPU连续两次访问存储器的最小时间间隔称为( )。
【单选题】以下涉及406MHzEPIRB描述正确的是____。
A.
406MHz EPIRB启动后 , 每50 s 发送一次持续时间约0 . 5 s, 输出功事为5W的含有数字编码信息的射频脉冲信号
B.
406MHz EPIRB启动后 , 每50s发送一次持续时间约0 . 5s , 输出功率为50W的含有数字编码信息的射频脉冲信号
C.
406MHz EPIRB启动后,每50 s 发送-次持续时间约0.2 s ,输出功率为 5W 的含有数字编码信息的射频脉冲信号
D.
406MHz EPIRB启动后,每5 s 发送一次持续时间约0.5s.输出功率为5w的含有数字编码信息的射频脉冲信号
【单选题】( ) finally killed Macbeth.