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【单选题】
配对设计资料，若满足正态性和方差。要对两样本均数的差别做比较，可选择A.
随机区组设计的方差分析
B.
z检验
C.
χ2检验
D.
秩和检验
E.
t检验
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举一反三
【单选题】According to the article.the California energy commission has received 200 project applications in one month. If that rate continues,approximately how many applications will they receive his entire ye...
A.
2,400
B.
1,200
C.
200
D.
3600
【单选题】破碎比,即破碎机在破碎过程当中( )。
A.
原废物粒度与破碎产物粒度的比值
B.
破碎产物体积与原废物体积的比值
C.
破碎产物粒度与原废物粒度的比值
D.
原废物体积与破碎产物体积的比值
【单选题】According to the news, what caused the growth of the US economy about 200 years ago?
A.
The new technology used to build roads.
B.
The ability to transport goods over land
C.
The trade in grain and cotton.
D.
The linking of smaller local roads into one long road
【简答题】在破碎过程中,原废物粒度与破碎产物粒度的比值称为 ( )。
【简答题】What is the divorce rate, according to the interviewer? [A] 50%. [B] 30%. [C] 200/o. [D] 10%.
【单选题】According to the traffic regulation, any driver ______ be fined 100-200 yuan for parking in wrong places. [ ]
A.
will
B.
shall
C.
must
D.
should
【单选题】Average family pays ______ dollars a year for packages according to this report.
A.
100
B.
200
C.
300
相关题目：
【单选题】破碎比,即破碎机在破碎过程当中( )。
A.
原废物粒度与破碎产物粒度的比值
B.
破碎产物体积与原废物体积的比值
C.
破碎产物粒度与原废物粒度的比值
D.
原废物体积与破碎产物体积的比值
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