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【单选题】
假定两种方法检测结果的假阳性率和假阴性率都很低。现有50份血样用甲法检查阳性25份，用捡查阳性35份，其中两法同为阳性和阴性的分别为23和13份。为检验两种方法检查结果之间的差别是否有显著性意义，用
A.
配对t检验
B.
行×列表X2检验
C.
配对X2检验
D.
四格表X2检验
E.
两样本的t检验
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【单选题】We will ____ the city football club. Would you like ____ us? [     ]
A.
join; to join
B.
join; take part in
C.
take part in; join
D.
join; to take part in
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【单选题】I hope_____. [     ]
A.
him to join us
B.
he join us
C.
he to join us
D.
he will join us
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【单选题】News report 2--- 1. What is the right account of “Perez y Martina”?
A.
It is a story about Spanish immigrants.
B.
It is a tale about a cockroach and a mouse.
C.
It is the name of a story-telling program.
D.
It is the name of a book.
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【多选题】按照知觉反映对象的不同,知觉可分为( )
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时间知觉
B.
空间知觉
C.
味知觉
D.
形状知觉
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【单选题】Why not ___ an English club to practice __ English? [     ]
A.
to join; to speak
B.
join; speaking
C.
  join; to speak
D.
to join; speaking
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【单选题】What is not right about Xinchejian?
A.
Xinchejian is the first hackerspace in China.
B.
It is only built in China.
C.
It is a non-profit organization run by volunteers.
D.
Xinchejian’s mission is to support and promote physical computing, open source hardware, and the Internet of Things.
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【单选题】News report 2--- 1. What is the right account of “Perez y Martina”? [音频]
A.
It is a story about Spanish immigrants.
B.
It is a tale about a cockroach and a mouse.
C.
It is the name of a story-telling program.
D.
It is the name of a book.
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【单选题】Who wants_________the swimming club?
A.
to joins              
B.
join                       
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【单选题】[音频] News report 2--- 1. What is the right account of “Perezy Martina”?
A.
It is a story about Spanish immigrants.
B.
It is a tale about a cockroach and a mouse.
C.
It is the name of a story-telling program.
D.
It is the name of a book.
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【简答题】土的压缩指数Cc的表达式为( )。
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【单选题】What is not right about Xinchejian?
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【单选题】News report 2--- 1. What is the right account of “Perez y Martina”? [音频]
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It is the name of a story-telling program.
D.
It is the name of a book.
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A.
to joins              
B.
join                       
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【单选题】[音频] News report 2--- 1. What is the right account of “Perezy Martina”?
A.
It is a story about Spanish immigrants.
B.
It is a tale about a cockroach and a mouse.
C.
It is the name of a story-telling program.
D.
It is the name of a book.
查看完整题目与答案
【简答题】土的压缩指数Cc的表达式为( )。
查看完整题目与答案