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奇偶校验码的码距是多少？奇偶校验码的校错能力怎样？
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【单选题】听力原文：M: Jane, you won’t be able to get to the airport in time to catch the ten o’clock flight. W: I realize that now. I’ll have to get my ticket changed. Q: What will the woman have to do? (16)
A.
Buy a ticket for the ten o'clock flight.
B.
Ask the man to change the ticket for her.
C.
Go to the airport immediately.
D.
Switch to a different flight.
【单选题】One of the most interesting of all studies is the study of words and word origins. Each language is【1】of several earlier languages, and the words of a language can sometimes be traced【2】through two or...
A.
collected
B.
made
C.
contained
D.
composed
【单选题】Unlike the origins of most nations, America’s origins are not ______ in the mists of time.
A.
far away
B.
taken after
C.
obscured
D.
viewed
【简答题】On the origins of racism 1_____ over the origins of racism often suffer from a lack of clarity over the term. Many mix recent forms of racism with earlier forms of 2_____ and national conflict. In mos...
【判断题】The origins of etiquette—the conventional rules of behavior. and ceremonies observed in polite society—are complex. One of them is respect for authority. From the most primitive times, subjects(臣民) sh...
A.
正确
B.
错误
【单选题】I ___ on my report next week so I won’t be able to meet you any day.
A.
am working
B.
will be working
C.
was working
D.
have been working
【单选题】The Origins of Theater In seeking to describe the origins of theater, one must rely primarily on speculation, since there is little concrete evidence on which to draw. The most widely accepted theory,...
A.
changed
B.
debated
C.
created
D.
supported
【判断题】The theories about the origins of language are not at most a speculation.
A.
正确
B.
错误
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