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【多选题】
以下关于误码率定义的描述中,正确的是()。
A.
误码率是衡量传输系统正常状态下传输可靠性的参数
B.
如果系统传输的不是二进制数据，则需要折算成二进制计算
C.
在传输速率确定后，误码率要求越低，传输系统造价越高
D.
误码率是二进制数据在传输系统中传输出错的概率
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参考答案：
举一反三
【单选题】在 172.16.8.159 /26 255.255.255.192 这个网络里,广播地址是
A.
172.16.255.255
B.
172.16.8.127
C.
172.16.8.191
D.
172.16.8.255
查看完整题目与答案
【简答题】在△ABC中，角A，B，C的对边分别为a，b，c，AH为BC边上的高，在以下结论中： ① AH ?( AB + BC )= AH ? AB ； ② AH ? AC = AH 2 ； ③ AC ? AH | AH | =c?sinB ； ④ BC ?( AC - AB )= b 2 + c 2 -2bc?cosA ． 其中正确结论的序号是______．
查看完整题目与答案
【单选题】Why did the Pilgrims make a voyage to America?
A.
To hunt for food
B.
To found a country.
C.
To search for religious freedom.
D.
To seek material pleasure.
查看完整题目与答案
【简答题】在172.16.8.159/26这个网络里,广播地址为( )
查看完整题目与答案
【单选题】The second half of his voyage was by far the more dangerous part ______ he sailed round the treacherous Cape Horn.
A.
where
B.
of which
C.
during which
D.
that
查看完整题目与答案
【多选题】To make a voyage, there should be on a ship.
A.
a captian
B.
first mate/pilot
C.
crew
D.
merchant
查看完整题目与答案
【单选题】Which event marks the end of the Wars of the Roses?
A.
Campaign between Spanish Armada and English Navy.
B.
English Renaissance.
C.
The Privy Council becomes the center of administration.
D.
Henry Tudor ascended to the throne as Henry VII.
查看完整题目与答案
【单选题】If the officer of the watch must leave the voyage plan, he should _____?
A.
Make a note in the logbook
B.
Inform the mater
C.
No special action necessary
D.
Check the new plan
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【单选题】The voyage charter means that th e vessel is put at the disposal of the charterer for a certain period employment without any crew．( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which event marks the end of the Wars of the Roses?
A.
Battle of Bosworth Field
B.
Campaign between Spanish Armada and English Navy
C.
Dissolution of the Monasteries
D.
English Renaissance
查看完整题目与答案
相关题目：
【单选题】在 172.16.8.159 /26 255.255.255.192 这个网络里,广播地址是
A.
172.16.255.255
B.
172.16.8.127
C.
172.16.8.191
D.
172.16.8.255
查看完整题目与答案
【简答题】在△ABC中，角A，B，C的对边分别为a，b，c，AH为BC边上的高，在以下结论中： ① AH ?( AB + BC )= AH ? AB ； ② AH ? AC = AH 2 ； ③ AC ? AH | AH | =c?sinB ； ④ BC ?( AC - AB )= b 2 + c 2 -2bc?cosA ． 其中正确结论的序号是______．
查看完整题目与答案
【单选题】Why did the Pilgrims make a voyage to America?
A.
To hunt for food
B.
To found a country.
C.
To search for religious freedom.
D.
To seek material pleasure.
查看完整题目与答案
【简答题】在172.16.8.159/26这个网络里,广播地址为( )
查看完整题目与答案
【单选题】The second half of his voyage was by far the more dangerous part ______ he sailed round the treacherous Cape Horn.
A.
where
B.
of which
C.
during which
D.
that
查看完整题目与答案
【多选题】To make a voyage, there should be on a ship.
A.
a captian
B.
first mate/pilot
C.
crew
D.
merchant
查看完整题目与答案
【单选题】Which event marks the end of the Wars of the Roses?
A.
Campaign between Spanish Armada and English Navy.
B.
English Renaissance.
C.
The Privy Council becomes the center of administration.
D.
Henry Tudor ascended to the throne as Henry VII.
查看完整题目与答案
【单选题】If the officer of the watch must leave the voyage plan, he should _____?
A.
Make a note in the logbook
B.
Inform the mater
C.
No special action necessary
D.
Check the new plan
查看完整题目与答案
【单选题】The voyage charter means that th e vessel is put at the disposal of the charterer for a certain period employment without any crew．( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which event marks the end of the Wars of the Roses?
A.
Battle of Bosworth Field
B.
Campaign between Spanish Armada and English Navy
C.
Dissolution of the Monasteries
D.
English Renaissance
查看完整题目与答案
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