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江蘇2010年高考數學試題節選
2、設複數z滿足z(2-3i)=6+4i(其中i為虛數單位),則z的模為___________
3、盒子中有大小相同的3隻小球,1隻黑球,若從中隨機地摸出兩隻球,兩隻球顏色不同的概率是______________
4、某棉紡廠為了了解一批棉花的質量,從中隨機抽取了100根棉花纖維的長度(棉花纖維的長度是棉花質量的重要指標),所得數據都在區間[5,40]中,其[
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