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【单选题】
数据在传输过程中所出现的差错类型主要有随机错和( )。A.
计算错
B.
突发错
C.
热噪声
D.
CRC校验错
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【判断题】A questionnaire is a research instrument consisting of a series of questions for gathering information from anyone the researcher can find.
A.
正确
B.
错误
【简答题】请结合弹性理论解释 “薄利多销”
【简答题】Look at the following statements (Questions 35-40 ) and the lust of researchers below. Match each statement with the correct researcher(s), A-E. Write the correct letter A-E , in boxes 35-40 on your a...
【简答题】Please translate the following paragraph into Chinese. Content ysis methods may be applied to virtually any form of communication. Content ysis is conducted by systematically yzing social ...
【单选题】The researcher find that children who get more exercise tend to have lower GPAs and better score on stanardized tests.
A.
√
B.
╳
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