楣ゅ娣囨花楂樹腑
2017-2018
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20
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30
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100
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135
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3
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4
6
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24
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4
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1
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24
锛岃嫢鎶藉埌鐨勭紪鍙蜂箣鍜屼负
48
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灏忕紪鍙蜂负
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2 B
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3 C
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4 D
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6
7
锛庡閲忎负
20
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鍒?/p>
缁?/p>
[10,20)
[20,30)
[30,40)
[40,50)
[50,60)
[60,70]