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某农科院在3×3的9块试验田中选出3块种植某品种水稻进行试验,则每行每列都有一块...
某农科院在3×3的9块试验田中选出3块种植某品种水稻进行试验,则每行每列都有一块试验田种植水稻的概率为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224525478465000/SYS201311012245254784650006_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224525478465000/SYS201311012245254784650006_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224525478465000/SYS201311012245254784650006_ST/2.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224525478465000/SYS201311012245254784650006_ST/3.png)
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