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【单选题】
2-1-2、 同 卷积的结果为( )
A.
B.
C.
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【简答题】n. 1 有利条件;长处 2 资产;财产
【简答题】有利条件,长处,资产,财产
【单选题】data<-data.frame( A=gl(3,20,60), B=gl(4,5,60), Y=c(23, 25, 21, 14, 15, 20, 17, 11, 26, 21, 16, 19, 13, 16, 24, 20, 21, 18, 27, 24, 28, 30, 39, 17, 22, 26, 24, 21, 25, 26, 19, 18, 19, 20, 2...
A.
NULL
B.
Df    Sum Sq   Mean Sq     F value   Pr(>F) A              2    504.4       252.22        10.982    0.000118   *** B              3    93.7         31.22          1.359      0.266421 A:B           6    115.4       19.24          0.838      0.547040 Residuals 48  1102.4     22.97
C.
Df    Sum Sq   Mean Sq     F value   Pr(>F) A              2    352.5       176.27        8.959      0.000494  *** B              3    87.5         29.17          1.483      0.231077 A:B           6    71.7         11.96          0.608      0.722890 Residuals 48  944.4       19.68
D.
2
【多选题】已知数据:25,22,21,25,19,26,22,28,24,27,25,26,26,27,29,28,36,24,25,30.在列频数分布表时,如果取组距为3,那么应分成()组,最低分组区间为
A.
5
B.
6
C.
18.5 ~ 21.5
D.
19 ~ 22
【单选题】19,18,21,22,24,( )。
A.
26
B.
27
C.
28
D.
3
【单选题】( )是指在一定的温度下,每立方米的空气中所能容纳水汽量的最大限度
A.
绝对湿度
B.
饱和湿度
C.
相对湿度
D.
露点
【单选题】What did Chanel’s clothes do for women? a They gave women more freedom. b They made women more attractive to men. c They were very cheap, so more women could buy them.
A.
a They gave women more freedom.
B.
b They made women more attractive to men.
C.
c They were very cheap, so more women could buy them.
【简答题】有利条件,长处;资助,财产
【简答题】A.More and more women join the movement fighting for their fights. B.Women's employment covers most of fields. C.There are 7 million women in U.S. who have the rights to vote. D.Men and women's voting...
【简答题】n. 1 有利条件;长处;2 资产;财产A. asset
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