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自上海世博会开幕以来,中国馆以其独特的造型吸引了世人的目光.据预测,在会展期间,...
自上海世博会开幕以来,中国馆以其独特的造型吸引了世人的目光.据预测,在会展期间,参观中国馆的人次数估计可达到14 900 000,此数用科学记数法表示是 .
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