两道六年级的数学题(要用文字写清楚理由)盒子里有同样大小的乒乓球.白球4个,黄球5个.(1)要想一定盒子里有同样大小的乒乓球。白球4个,黄球5个。(1)要想一定摸出2个白球,至少要
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![两道六年级的数学题(要用文字写清楚理由)盒子里有同样大小的乒乓球.白球4个,黄球5个.(1)要想一定盒子里有同样大小的乒乓球。白球4个,黄球5个。(1)要想一定摸出2个白球,至少要](/uploads/image/z/7265255-23-5.jpg?t=%E4%B8%A4%E9%81%93%E5%85%AD%E5%B9%B4%E7%BA%A7%E7%9A%84%E6%95%B0%E5%AD%A6%E9%A2%98%EF%BC%88%E8%A6%81%E7%94%A8%E6%96%87%E5%AD%97%E5%86%99%E6%B8%85%E6%A5%9A%E7%90%86%E7%94%B1%EF%BC%89%E7%9B%92%E5%AD%90%E9%87%8C%E6%9C%89%E5%90%8C%E6%A0%B7%E5%A4%A7%E5%B0%8F%E7%9A%84%E4%B9%92%E4%B9%93%E7%90%83.%E7%99%BD%E7%90%834%E4%B8%AA%2C%E9%BB%84%E7%90%835%E4%B8%AA.%EF%BC%881%EF%BC%89%E8%A6%81%E6%83%B3%E4%B8%80%E5%AE%9A%E7%9B%92%E5%AD%90%E9%87%8C%E6%9C%89%E5%90%8C%E6%A0%B7%E5%A4%A7%E5%B0%8F%E7%9A%84%E4%B9%92%E4%B9%93%E7%90%83%E3%80%82%E7%99%BD%E7%90%834%E4%B8%AA%EF%BC%8C%E9%BB%84%E7%90%835%E4%B8%AA%E3%80%82%EF%BC%881%EF%BC%89%E8%A6%81%E6%83%B3%E4%B8%80%E5%AE%9A%E6%91%B8%E5%87%BA2%E4%B8%AA%E7%99%BD%E7%90%83%EF%BC%8C%E8%87%B3%E5%B0%91%E8%A6%81)
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