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最佳答案:翻译如下My parents pay much attention on grades and don't give us spare time.初二水平,句子
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最佳答案:Summer holiday is coming. It means we will have more time to do something we lik
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最佳答案:解题思路:根据图上所给出的数据可知每组的组距为100,求出第二组的频率,再用全市初三年级的总人数乘以频率,即可得出答案.根据题意得:150000×(100×0.