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【单选题】
土壤中DDT的主要迁移转化途径不包括哪一个()。A.
易被吸附
B.
在植物累积
C.
在土壤生物体中累积
D.
水解
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反馈参考答案：
举一反三
【简答题】n. 1 有利条件;长处 2 资产;财产
【简答题】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，分别是______，______，______，______，______，______．
【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 0.2621 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】What did Chanel’s clothes do for women? a They gave women more . 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 .
B.
b They made women more attractive to men.
C.
c They were very cheap, so more women could buy them.
【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...
【单选题】A) More women will be promoted in the workplace. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace> B) More women will overcome their inadequacies. C) More women will receive high...
A.
More women will be promoted in the workplace.
B.
More women will overcome their inadequacies.
C.
More women will receive higher education.
D.
More women will work outside the family.
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