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【多选题】
当两个现象呈完全线性相关时,下列统计指标值可能为A.
r=1
B.
r=0
C.
r=-1
D.
b=1
E.
Syx=1
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举一反三
【简答题】移支用户的ISDN号中的H0H1H2H3表示( )识别码
【单选题】听力原文：(Woman) Do you know when the next bus is scheduled to leave? (Man) (A) It stops at the corner. (B) It should leave at 3:15. (C) Yes, to the department store. (19)
A.
B.
【单选题】In order to change some companies' ___ towards hiring women college graduates, the government plans to pass a law. [ ]
A.
views
B.
rules
C.
attitudes
D.
methods
【单选题】— Jim has gone to Britain to see a modern art exhibition. — Oh, really? Do you know when he ?
A.
leaves
B.
will leave
C.
was leaving
D.
left
【单选题】— Do you know when the technology for hybrid rice to the United States? — Yes. In 1980. [ ]
A.
introduced
B.
introduces
C.
is introducing
D.
was introduced
【单选题】-- I hear Jane has gone to the Holy Island for her holiday ? --- Oh, how nice ! Do you know when she __________ ?
A.
was leaving
B.
had left
C.
has left
D.
left
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